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Interlingue
Occidental
Interlingue
Created by	Edgar de Wahl
Date	1922
Setting and usage	International auxiliary language
Purpose	Constructed language based on Indo-European languages
Early form	Auli
Writing system	Latin script
Language codes
ISO 639-1	ie
ISO 639-2	ile
ISO 639-3	ile
Linguist List	ile
Glottolog	inte1260
This article contains IPA phonetic symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Unicode characters. For an introductory guide on IPA symbols, see Help:IPA.

Patre nor, qui es in li cieles, mey tui nómine esser sanctificat...

Interlingue ([interˈliŋɡwe] ; ISO 639 ie, ile), originally Occidental ([oktsidenˈtaːl] ), is an international auxiliary language created in 1922 and renamed in 1949. Its creator, Edgar de Wahl, sought to achieve maximal grammatical regularity and natural character. The vocabulary is based on pre-existing words from various languages and a derivational system which uses recognized prefixes and suffixes.

Many of Interlingue's derived word forms reflect those common to certain Western European languages, primarily the Romance languages, along with some Germanic vocabulary. Many of its words are formed using de Wahl's rule, a set of rules for regular conversion of all but six verb infinitives into derived words including from Latin double-stem verbs (e.g. vider to see and its derivative vision). The result is a naturalistic and regular language that is easy to understand at first sight for individuals acquainted with certain Western European languages. Readability and simplified grammar, along with the regular appearance of the magazine Cosmoglotta, made Occidental popular in Europe during the years before World War II despite efforts by the Nazis to suppress international auxiliary languages.

Occidental survived the war, but the community had been out of touch with the language's creator since 1939. A Baltic German naval officer and teacher from Estonia, de Wahl refused to leave his Tallinn home for Germany, even after his house was destroyed in the 1943 air raids on the city forcing him to take refuge in a psychiatric hospital. Since most of his mail had been intercepted, he died in 1948 largely unaware of developments in the language. The name change to Interlingue took place the following year for two reasons: (1) to demonstrate to the Soviet Union the language's neutrality, and (2) the expectation of a possible union or closer collaboration with the community around Interlingua, a competing naturalistic project under development. Many users were lost following the latter's appearance in 1951, beginning a period of decline until the advent of the Internet.

History and activity

Beginnings

Edgar de Wahl announced the creation of Occidental in 1922 with the first issue of the magazine Cosmoglotta, published in Tallinn, Estonia under the name Kosmoglott. Occidental was a product of years of personal experimentation under the name Auli (auxiliary language), which he used from 1906 to 1921 and which later on gained the nickname proto-Occidental. De Wahl, originally a proponent of Volapük and then Esperanto, began creating Occidental after the failed vote to reform Esperanto in 1894.

De Wahl corresponded with other language creators, among them the Italian mathematician Giuseppe Peano (creator of Latino sine flexione), from whom he gained an appreciation for its selection of international vocabulary, and Waldemar Rosenberger, the creator of Idiom Neutral.

Upon its announcement in 1922, Occidental was nearly complete. De Wahl had not intended to announce the language for a few years, but decided to accelerate its release after hearing that the League of Nations (LON) had begun an inquiry into the question of an international language. The first known publication in Occidental, a booklet entitled Transcendent Algebra by Jacob Linzbach, appeared shortly before Kosmoglott debuted.

Occidental began gathering followers due to its readability, despite a complete lack of grammars and dictionaries. Two years later in 1924, de Wahl wrote that he was corresponding with about 30 people "in good Occidental" despite the lack of learning material, and users of other languages began to join Occidental. The first dictionary, the Radicarium Directiv, a collection of Occidental root words and their equivalents in eight languages, was published the following year.

Kosmoglott was also a forum for various other planned languages, while still mainly written in Occidental. The name was changed to Cosmoglotta in 1927 as it began to officially promote Occidental in lieu of other languages, and that January the magazine's editorial and administrative office was moved to the Vienna neighborhood of Mauer, now part of Liesing. Much of the early success for Occidental in this period came from the office's new central location, along with the efforts of Engelbert Pigal, also from Austria, whose article Li Ovre de Edgar de Wahl (The Work of Edgar de Wahl) led to interest in Occidental from users of Ido. Use in France began in 1928, and by the beginning of the next decade the Occidental community was established in Germany, Austria, Sweden, Czechoslovakia and Switzerland.

Vienna period and World War II

The Vienna period was also marked by financial stability. With the help of two major backers, Hanns Hörbiger, also from Vienna, and G.A. Moore from London, Cosmoglotta thrived despite the economic crisis. After the two died in 1931, Cosmoglotta was again forced to rely on revenue from subscriptions and republications.

The growing movement began campaigning more assertively for Occidental in the early 1930s, leveraging its at-sight readability by contacting organizations such as companies, embassies, printing houses and the LON with letters entirely in Occidental that were often understood and answered. Recordings of spoken Occidental on gramophone records for distribution were first made in this period.

The years from 1935 to 1939 were particularly active for Cosmoglotta and a second edition of the journal was published. Originally entitled Cosmoglotta-Informationes, it was soon renamed Cosmoglotta B, focusing on items of more internal interest such as linguistic issues, reports of Occidental in the news, and financial updates. In early 1936, not counting the 110 issues of Cosmoglotta and other journals and bulletins, a total of 80 publications existed in and about Occidental.

But the years before World War II posed difficulties for Occidental and other planned languages. They were banned in Germany, Austria and Czechoslovakia, forced to disband, and kept under surveillance by the Gestapo, which also destroyed instructional materials. The prohibition of auxiliary languages in Germany was particularly damaging as this was where most Occidentalists lived at the time. The inability to accept payment for subscriptions was a financial blow that continued after the war along with Germany's division into zones of influence, not all of which allowed payments.

De Wahl, in Tallinn, was unable to communicate with the Occidental Union in Switzerland from 1939 to October 1947, first due to the war and thereafter the interception of mail between Switzerland and the Soviet Union. Unaware of this, de Wahl was bewildered at the lack of response to his continued letters; even a large collection of poetry translated into Occidental was never delivered. The only letter of his received in Switzerland came in 1947, asking the Occidental Union why it had not answered any of his. Meanwhile, de Wahl's house and his entire library had been destroyed during the bombardment of Tallinn. De Wahl himself was incarcerated for a time after refusing to leave Estonia for Germany, and later took refuge in a psychiatric hospital where he lived out his life.

The outbreak of war in 1939 put a halt to publications of both Cosmoglottas through 1940, but in 1941 Cosmoglotta B began publication once again and continued until 1950. An edition of either Cosmoglotta A or B was published every month between January 1937 and September 1939, and then (after the initial shock of the war) every month from September 1941 to June 1951. During the war, only those in neutral Switzerland and Sweden were able to fully devote themselves to the language, carrying on activities semi-officially.

During the war, Occidentalists noticed that the language was often permitted to be sent by telegram within and outside of Switzerland (especially to and from Sweden) even without official recognition, surmising that censors were able to understand it and may have thought them to be written in Spanish or Romansch (a small yet official Romance language in Switzerland). This allowed some communication to take place between the Occidentalists in Switzerland and Sweden. The other centres of Occidental activity in Europe did not fare as well, with the stocks of study materials in Vienna and Tallinn having been destroyed in bombings and numerous Occidentalists sent to concentration camps in Germany and Czechoslovakia.

Contacts were reestablished shortly after the war by those who remained, with letters from countries such as France, Czechoslovakia, Finland and Great Britain reaching Cosmoglotta. Writers said they were ready to begin activities anew for the language. Cosmoglotta had subscribers in 58 cities in Switzerland a few months before the end of World War II in Europe, and Cosmoglotta A began publication again in 1946.

Language standardization

During the war many Occidentalists took to standardizing the language. De Wahl had created Occidental with a number of unchangeable features, but believed that its following of the "laws of life" gave it a firm enough base that it could follow a "natural evolution" with a flexibility that would "allow time and practice to take care of modifications that would prove to be necessary". As a result, some words had more than one permissible form, which could not be resolved by decree alone, thus leaving the ultimate decision to the community by including both possible forms in the first Occidental dictionaries. One example concerned the verb scrir (to write) and a possible other form scripter, as both created internationally recognizable derivations: scritura and scritor from scrir, or scriptura and scriptor from scripter. De Wahl expressed a preference for scrir, finding scripter to be somewhat heavy, but commented that the latter was certainly permissible and that Occidental might take on a similar evolution to natural languages in which both forms come into common use, with the longer form having a heavier and formal character and the shorter form a lighter and more everyday tone (such as English story vs. history).

Orthography was another area in which several possibilities existed, namely etymologic orthography (adtractiv, obpression), historic orthography (attractiv, oppression), or simplified orthography (atractiv, opression). The simplified orthography eventually became the standard by 1939. With questions still remaining about the official form of some words and a lack of general material destined for the general public, much time during World War II was spent on language standardization and course creation, and due to the continuing war, in August 1943 the decision was made to create an interim academy to officialize this process.

This process had just about begun not long before the war, and the Swiss Occidentalists, finding themselves isolated from the rest of the continent, opted to concentrate on instructional materials to have ready by the end of the war.

IALA, Interlingua, and name change to Interlingue

The International Auxiliary Language Association (IALA), founded in 1924 to study and determine the best planned language for international communication, was at first viewed with suspicion by the Occidental community. Its co-founder Alice Vanderbilt Morris was an Esperantist, as were many of its staff, and many Occidentalists including de Wahl himself believed that its leadership under Esperantist William Edward Collinson meant that it had been set up with a staff of professional linguists under a neutral and scientific pretext to bolster a final recommendation for Esperanto. Relations soon improved, however, as it became clear that the IALA intended to be as impartial as possible by familiarizing itself with all existing planned languages. Ric Berger, a prominent Occidentalist who later joined Interlingua in the 1950s, made a personal visit to Morris in 1935 in which she and her husband showed a curiosity for Occidental and invited him to speak in the language, vastly improving Berger's opinion of the organization.

In 1945, the IALA announced that it planned to create its own language and showed four possible versions under consideration, all of which were naturalistic as opposed to schematic. Occidentalists were by and large pleased that the IALA had decided to create a language so similar in nature to Occidental, seeing it as a credible association that gave weight to their argument that an auxiliary language should proceed from study of natural languages instead of attempting to fit them into an artificial system. Ric Berger was particularly positive in describing the upcoming language as a victory for the natural school and "almost the same language" in 1948. Berger still had reservations, however, doubting whether a project with such a similar aspect and structure would be able to "suddenly cause prejudices to fall and create unity among the partisans of international languages". Berger also feared that it might simply "disperse the partisans of the natural language with nothing to show for it" after Occidental had created "unity in the naturalistic school" for so long.

While the two languages had a 90 per cent identical vocabulary without orthographic differences taken into account (e.g. with filosofie and philosophia considered the same word), structurally and derivationally they were very different. De Wahl's Rule in Occidental had mostly done away with Latin double stem verbs (verbs such as act: ager, act- or send: mitter, miss-), while Interlingua simply accepted them as part and parcel of a naturalistic system. The control languages (Italian, Spanish and/or Portuguese, French, English) used by Interlingua to form its vocabulary for the most part require an eligible word to be found in three source languages (the "rule of three"), which would conflict with Occidental's Germanic substrate and various other words which would be by definition ineligible in a unified language that retained Interlingua's methodology. Interlingua also allowed optional irregular verbal conjugations such as so, son and sia as the first-person singular, third-person plural and subjunctive form of esser, the verb 'to be'.

Occidental was also still recovering from the war. Cosmoglotta continued to report into 1946 on who had survived the war, who among them were ready to participate again and those who were still out of touch. The magazine was financially strained by inflated postwar printing costs and its inability to collect payments from certain countries, a marked contrast to the well-funded New York-based IALA.

International politics was another difficulty for Occidentalists after the war. The beginning of the Cold War created an uncomfortable situation for the Occidental-Union, whose name unfortunately coincided with that of an anti-Russian political league; the Swiss Occidentalists believed that was why all of de Wahl's letters from Tallinn were intercepted. De Wahl remained unaware of developments in the language and the proposal for the rest of his life. In early 1948 the Czechoslovak Occidentalists had begun requesting a new name that would allow them to continue their linguistic activities without suspicion, proposing the name Interal (International auxiliari lingue), to which the union responded that the term Interlingue would be more appropriate and that they were free to introduce the language as "Interlingue (Occidental)", or even remove the mention of Occidental in parentheses if they wanted. Ric Berger began advocating for a change of name from Occidental to Interlingue in 1948 which he also hoped would aid in a fusion between the two languages. The official vote on the name change to Interlingue took place in 1949 and was passed with 91 per cent support, making the official name Interlingue, with Interlingue (Occidental) also permitted, starting September 1949.

The 1951 debut of Interlingua weakened Interlingue-Occidental, which until then had been unchallenged in the field of naturalistic planned auxiliary languages. Vĕra Barandovská-Frank's perception of the situation at the time was as follows (translated from Esperanto):

In the field of naturalistic planned languages Occidental-Interlingue was until then unchallenged (especially after the death of Otto Jespersen, author of Novial), as all new projects were nearly imitations of it. This applied to Interlingua as well, but it carried with it a dictionary of 27 000 words put together by professional linguists that brought great respect, despite in principle only confirming the path that de Wahl had started. In these circumstances the efforts by Ric Berger to move all users of Interlingue en masse to Interlingua de IALA was a shock. His heresy caused doubt and interruptions in Interlingue circles, especially after he became involved in the publication of "Revista de Interlingua". The former idea of a natural fusion of both languages was shown to be unrealistic, with the new language becoming a rival.

Don Harlow similarly summarizes the year 1951 for Occidental:

Interlingua had a ready-made constituency. Almost thirty years had passed since the creation of Occidental, whose strength in the "naturalistic" world had prevented other "naturalistic" projects from developing their own movements. But Occidental's star had waned since the war. Now, like a bolt from the blue, came this heaven-sent gift: a new constructed language even more "naturalistic" than Occidental. In spite of attempts by diehard supporters of Occidental to stave off the inevitable — for instance, by such tactics as renaming their language Interlingue — most remaining Occidentalists made the short pilgrimage to the shrine of Interlingua.

Stagnation and revival

While the migration of so many users to Interlingua had severely weakened Interlingue, the ensuing drop in activity was gradual and took place over decades. Cosmoglotta B ceased publication after 1950, and the frequency of Cosmoglotta A began to gradually drop: once every second month from 1952, and then once per quarter from 1963. Other bulletins in Interlingue continued to appear during this time such as Cive del Munde (Switzerland), Voce de Praha (Czechoslovakia), Sved Interlinguist (Sweden), International Memorandum (United Kingdom), Interlinguistic Novas (France), Jurnale Scolari International (France), Buletine Pedagogic International (France), Super li Frontieras (France), Interlingue-Postillon (1958, Germany), Novas de Oriente (1958, Japan), Amicitie european (1959, Switzerland), Teorie e practica (Switzerland-Czechoslovakia, 1967), and Novas in Interlingue (Czechoslovakia, 1971). Barandovská-Frank believed that the ebb in interest in Occidental-Interlingue occurred in concert with the aging of the generation that was first drawn to it from other planned languages:

Most of those interested in Interlingue belonged to the generation that became acquainted in turn with Volapük, Esperanto and Ido, later on finding the most aesthetic (essentially naturalistic) solution in Occidental-Interlingue. Many subsequently moved to IALA's Interlingua, which however did not prove to be much more successful despite the impression its scientific origin made, and those who remained loyal to Occidental-Interlingue did not succeed in imparting their enthusiasm to a new generation.

Activity in Interlingue reached a low during the 1980s and early 1990s, when Cosmoglotta publication ceased for a few years. While issue 269 was published in 1972 after publishing once per season between 1963, issue 289 was not reached until summer 2000 for an average of less than one issue per year. According to Harlow, "in 1985 Occidental's last periodical, Cosmoglotta, ceased publication, and its editor, Mr. Adrian Pilgrim, is quoted as having described Occidental as a 'dead language.'" A decade later, a documentary film in 1994 by Steve Hawley and Steyger on planned languages introduced Interlingue speaker Donald Gasper as "one of the last remaining speakers of the language Occidental".

As was the case for other planned languages, the arrival of the Internet spurred Interlingue's revival. In the year 1999 the first Yahoo! Group in Occidental was founded, Cosmoglotta had begun publishing intermittently again, and the language became a subject of discussion in literature on auxiliary languages. One example is The Esperanto Book released in 1995 by Harlow, who wrote that Occidental had an intentional emphasis on European forms and that some of its leading followers espoused a Eurocentric philosophy, which may have hindered its spread. Still, the opposite view was also common in the community and Occidental gained adherents in many nations including Asian nations. An Interlingue Misplaced Pages was approved in 2004. In recent years official meetings of Interlingue speakers have resumed: one in Ulm in 2013, another in Munich in 2014 with three participants, and a third in Ulm the next year with five.

The most recent edition of Cosmoglotta is volume 333, for the period from January to June 2024.

Recent years have shown new books published in Interlingue such as The Little Prince, the Gospel of Mark, Salute, Jonathan!, and works including Li sercha in li castelle Dewahl e altri racontas, Antologie hispan, and Fabules, racontas e mites.

Language philosophy

De Wahl was first introduced to planned languages through Volapük, an international auxiliary language released in 1879. De Wahl later became one of the earliest users of Esperanto (la lingvo internacia), which he encountered for the first time in 1888 during his period as a Volapükist and for which he was in the process of composing a dictionary of marine terms. He quickly became a fervent supporter of Esperanto for a number of years in which he collaborated with Zamenhof on some parts of the language's design and translated one of the first works into Esperanto: "Princidino Mary", published in 1889 originally under the name Princino Mary. He remained an Esperantist until 1894 when the vote to reform Esperanto failed; he was one of just two that voted neither for Esperanto unchanged, nor for the reform proposed by Zamenhof, but for a completely new reform. Occidental would not be announced for a full 28 years after de Wahl had abandoned Esperanto, a period in which he spent working with other language creators trying to develop a system that combined naturalism and regularity, a combination that became a frequently referenced selling point in the promotion of Occidental.

Among those de Wahl worked with while developing Occidental were Waldemar Rosenberger (Idiom Neutral), Julius Lott (Mundolingue), and Antoni Grabowski (Modern Latin for a time, before returning to Esperanto). The method sought after by these "partisans of naturalism" was the distillation of existing words into their parts to obtain the international roots within them (such as naturalisation to nat-ur-al-is-ation), then used in other words to keep root words to a minimum while maintaining a natural appearance. This decomposition of existing words gave rise to a large number of affixes. For example, just those used to form nouns referring to a type of person are as follows: -er- (molinero – miller), -or- (redactor – editor), -ari- (millionario – millionaire), -on- (spion, spy), -ard (mentard, liar), -astr- (poetastro, lousy poet), -es (franceso, Frenchman), -essa (reyessa, queen). In de Wahl's opinion it was always preferable to opt for a productive suffix than to be forced to coin new words from completely new radicals later on. In addition to this, de Wahl's rule developed later allowed for regular derivation from double-stem Latin verbs.

The Delegation for the Adoption of an International Auxiliary Language, a body of academics formed to study the problem of an international language and which recommended Esperanto with reforms (leading to the language known as Ido), occurred in 1907 before Occidental was announced. De Wahl thus chose to send a memorandum of principles on which to base an international language, a memorandum which arrived after the committee had already adjourned. It was only noted in passing by Louis Couturat, who was already familiar with de Wahl and his collaborators. The principles stated in the memorandum are listed in a request for the committee to declare:

1. that none of the existing systems are satisfactory;

2. that the international language to construct should be based on international material;

3. that it should have a precise system of formation of words which, by its own rules, obtains words which are truly international;

4. that it should have a natural grammar that produces no unnatural forms;

5. that it should have an international orthography.

De Wahl published in 1922 a modification of Otto Jespersen's principle that "That international language is best which in every point offers the greatest facility to the greatest number", stating that the international language should be easiest for the majority of those "who must apply it", or in other words those that need it in international relations. De Wahl believed that the number of speakers did not always need to be taken into account, particularly in specialized areas such as botany where for example the term Oenethera biennis (a type of plant) should be implemented unchanged in an international language even if the entire world population of botanists, those most often familiar with and likely to use the word, did not exceed 10,000.

This also implied that words belonging to particular cultures should be imported without modifications, which De Wahl believed brought new ideas of value to European culture that had become "sick" after World War I. He cited the terms karma, ko-tau (kowtow), geisha, and mahdí in 1924 as examples of those that should not be put in a "vocalic corset" through obligatory endings (e.g. karmo, koŭtoŭo, gejŝo, madho in Esperanto) when imported into the international language:

Such words, still not large in number, have seen a large increase in the past century, and in the future will grow in exorbitant proportion when, through international communication, the ideas of stable Oriental cultures will inundate and influence the sick Europe, which is now losing its equilibrium. And the more mutilated the words are, the more mutilated will be the ideas that they represent.

In an article on the future development of language, de Wahl wrote in 1927 that due to European dominance in the sciences and other areas Occidental required a form and derivation recognizable to Europeans, but that it should also be fitted with a grammatical structure capable of taking on more analytical, non-derived forms in the future (such as the equivalents of "bake man" for baker or "wise way" for wisdom) if worldwide linguistic trends began to show a preference for them.

De Wahl believed that there was a fine balance to be maintained between schematic regularity versus naturalism in an international language, where too much of the former may be convenient for the early learner but abhorrent for a speaker, and vice versa:

Exceptions are not made to make study more difficult for foreigners, but to make speaking shorter and more fluid It is clear that in this language as the most impersonal, abstract and businesslike one of all, regularity will be greater and more expanded than in all other national and tribal languages and idioms. But it will never be able to attain a total schematism Also here the real solution will be a harmonization of the two contrary principles. It requires the sensitive penetration of the real necessity in the instinct of the international superpopulation."

While primarily Romance in vocabulary, de Wahl opted for a large Germanic substrate which he felt was more expressive for technical and material vocabulary (self, ost (east), svimmar (to swim), moss, etc.), with Romance and Greek vocabulary more appropriate in the derivation of international words (fémina for woman to form feminin, can for dog to form canin (canine), etc.) as well as mental, corporal and natural conceptions. Minor Romance languages such as Ladin, Provençal (Occitan) and Catalan along with creoles were important in the development of Occidental for de Wahl, who wrote as early as 1912 that his language under development was more similar to Provençal than Italian or Spanish. The Swiss magazine Der Landbote made a similar comment while reviewing the language in 1945, commenting humorously that "reading through the few examples of Occidental gives us the impression of a half-learned Catalan by a foreigner who doesn't much understand the grammar."

De Wahl stressed that Occidental's natural appearance did not imply wholesale importation of national expressions and usage, and warned that doing so would lead to chaos. One of his articles on this subject was directed toward English and French users who he believed incorrectly saw Occidental as a mix of the two: "(Occidental's chaotic appearance) is not the fault of Occidental itself, but rather that of its users and especially the French and English, or those that think that the international language should be a mixture of those two languages that is a fundamental error, especially if these forms present exceptions and irregularities in Occidental's system." Alphonse Matejka wrote in Cosmoglotta that de Wahl "always claimed a minimum of autonomy for his language and bitterly fought against all propositions that intended to augment the naturalism of the language only by blindly imitating the Romance languages, or as de Wahl said crudely in one of his letters to me, 'by aping French or English'".

Occidental's erring on the side of regularity led to vocabulary that was still recognizable but different from the international norm, such as ínpossibil in place of impossibil (ín + poss + ibil), scientic (scientific, from scient-ie + -ic), and descrition (description, from descri-r + -tion). This is one of the greatest differences between it and Interlingua, which has a vocabulary taken from so-called 'prototypes' (the most recent common ancestor to its source languages) while Interlingue/Occidental focused on active, spontaneous derivation. Vocabulary was deemed technically permissible even if it did not match forms in other living languages, with these derived words described as "forms that living languages would have been able to produce using their own means".

Vocabulary

Though seemingly favourable to the Romance language family, de Wahl did not see Occidental as a Romance language and did not tolerate any nationalism or chauvinism in the choice of words for the language. His opinion on justice in the choice of vocabulary was that: "However many special, new, significant words each has respectively added to the common human culture, that much they receive." In an article entitled "International o Romanic" (International or Romance) in 1929, he gave examples from a number of categories in which particular languages had a particularly large influence. Those included Greek for science and philosophy (teorema, teosofie, astronomie), Latin for politics and law (social, republica, commission), Scandinavian, Dutch and English for navigation (log, fregatte, mast, brigg, bote), and various other international vocabulary originating in other languages (sabat, alcohol, sultan, divan, nirvana, orang-utan, bushido, té, dalai-lama, cigar, jazz, zebra, bumerang, etc.).

Symbol

The symbol of Occidental and its dimensions were chosen in 1936 after some deliberation and many other proposed symbols that included stylized letters, a star (as in Esperanto and Ido), a setting sun to represent the sun in the west (the Occident), a globe, and more. The tilde, already used by the Occidental-Union, was eventually selected based on five criteria: symbolic character, simplicity, originality, unlikeliness to be confused with another symbol, and for being bichromatic (having two colours) as opposed to polychromatic. Beyond the five criteria, the Occidentalists at the time referenced the advantages of the lack of a fixed meaning for the tilde in the public sphere, and its similarity to a waveform, implying speech.

Linguistic features

Orthography

Interlingue is written with 26 Latin letters: a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, and z. The names of the letters are a, be, ce, de, e, ef, ge, ha, i, jot, ka, el, em, en, o, pe, qu, er, es, te, u, ve, duplic ve, ix, ypsilon, and zet. Accents are written on the five vowels to indicate irregular stress, with the acute accent (á é í ó ú) preferred, but others (è, ê, etc.) permitted.

Phonology

Vowels

Sources on the pronunciations of the vowels are contradictory. Some say that the vowels have their Continental values (that is, ), others that they have different qualities when long and short; they also differ on the number of diphthongs (e.g. au eu ay ey). Earlier texts on Occidental described seven vowels (the five continental vowels plus y like [y], namely French u or German ü, and eu as German ö), but by the 1940s the official recommendation was that vocalic y be pronounced like i and eu as a diphthong instead of ö. Rough English equivalents for the vowels are as follows:

• a as in French, German, Spanish or Italian, or English father.
• e open or closed, as German, Spanish or Italian, or English bed and yes.
• i as French, German, Spanish and Italian, or English machine.
• o open or closed as in French, German, Spanish and Italian, or English door, hot.
• u as in German, Spanish and Italian, or English rule, pull. U after q is a short, almost consonantal (w).
• y is a consonant after a vowel or beginning a word before a vowel, otherwise is pronounced as i.

Interlingue has non-obligatory vowel length. Rough English equivalents of the sounds are as follows:

• short a is /æ/ as in "pat"
• short e is /ɛ/ as in "pet"
• short i is /ɪ/ as in "pit"
• short o is /ɒ/ as in "pot"
• short u is /ʊ/ as in "put"

Vowels are short in the following cases:

1. Vowels are short in unstressed syllables (Accented vowels tend to be long: e in idé, o in sonori, a in dramatic)
2. Vowels are short when followed by two consonants (unless the second consonant is r or l a preceding stressed vowel is long)
3. Vowels before a final c, ch or x
4. Vowels in short grammatical particles tend to be short

Examples of long vowels: "pur", "robe", "blu", "fibre", "table".

Examples of short vowels: "calm", "old", "potte", "flagga", "mann", "fox", "storc", "in", "it".

Consonants

The consonants are pronounced as in English, with the following exceptions:

• c when before e and i = : cive, helice, and otherwise as
• g when before e and i = , French j, or English s in pleasure: plage, giraffe; but elsewhere c and g are hard as in can, go
• ss = as in pass
• s between vowels = : rose, positiv
• z =
• zz =
• ch = , English sh: chambre
• j = , French j, or English s in pleasure
• t as , except when followed by ia, io, iu, or ie and not preceded by an s. Thus the t in nation is pronounced but in bastion as .

Other doubled consonants are pronounced as a single consonant, unless when separated they would be pronounced differently. Ex. grammatica is pronounced as if written gramatica, but acceptar and suggestion are pronounced as if written as ac followed by ceptar, and sug followed by gestion.

Stress

Words are generally stressed on the vowel before the final consonant: intercalar, parol, forme. Pluralizing a noun does not change the stress: paroles, formes. The endings -bil, -ic, -im, -ul and -um do not change the stress (even when more than one is present in a single word), nor does the adverbial ending -men: rapidmen, duplic, bonissim, singul, possibil, maximum, statisticas. Two vowels together are diphthongized and do not count as two syllables for the purpose of stress: familie, potentie, unless the word is a single consonant or consonant cluster followed by two vowels: die, deo. Compound words are stressed based on the last word in the compound: hodie, substrae. In cases where the accent is irregular, it is indicated by an accent: café, ínpossibil, numeró, númere, felicitá. The accent mark may also be used for emphasis as needed: Yó ea con la (ne tú).

Grammar

Articles

Like English, Interlingue has definite and an indefinite articles. The definite article (the) is li, and the indefinite (a, an) is un. Plural of a noun is made by adding -s after a vowel, or -es after most consonants. To avoid pronunciation and stress changes, words ending in -c, -g, and -m only add an -s: un libre, du libres, li tric, li trics, li plug, li plugs, li album, pluri albums.

The ending of the definite article can be modified to lo (masculine), la (feminine), lu (neuter), lis (plural), los (masculine plural), e las (feminine plural). The article itself can also be pluralized before words that are difficult to pluralize on their own: lis s (the s's).

Personal pronouns

Interlingue has two forms for the personal pronouns: one for the subject form (nominative), and one for the object form (accusative or dative, i.e. the oblique form):

The formal second person is vu, which is also the second person plural. The indefinite personal pronoun "one" is on. One can also specify the gender of third person plural by using illos (masculine) or ellas (feminine).

Grammatical endings

Only a few parts of speech in Interlingue (such as verbs in the infinitive) have entirely obligatory endings, while many other endings are optional though sometimes recommended. Some grammatical endings are:

• ar, er, ir: verb infinitive. far (to do), posser (be able), scrir (to write)
• e: the general substantival (noun) ending. Used obligatorily to differentiate nouns from other parts or speech, for reasons of pronunciation, or optionally for euphony.
• i: the general adjectival ending, similar to -e in usage.
• a: nouns that end in e formed from an -ar verb are often written with the -a ending if one wishes to emphasize the verbal (active) aspect. The a ending also makes nouns feminine: anglese (English person), angleso (Englishman), anglesa (English woman). This does not apply to nouns that on their own indicate the gender (patre, matre).
• o: indicates the masculine gender in the same way a indicates the feminine.

Correlatives

While correlatives were not made to match a pre-determined scheme (such as the correlatives in Esperanto), the majority match the prefixes and suffixes in the chart below.

Notes on the correlatives:

Alcun (some) and necun (no, none) are respectively the adjectives of alquel and nequel.

The -al series is adverbialized with the -men ending: qualmen (how) talmen (that way).

Correlatives can take the plural ending: queles, quales, tis, omnis, etc.

Ci (here) and ta (there) can be affixed to ti and to to indicate proximity or distance: ti libre (this book), ti-ci libre (this book here), ti-ta libre (that book there), tis (these), tis-ci (these here), tis-ta (those there), to-ci (this here), to-ta (that there).

Many derivatives are formed from the correlatives: qualitá from qual + itá, quantitá from quant + -itá, omnipotent from omni + potent.

Verbs

Verbs in Interlingue have three endings: -ar, -er, and -ir. Conjugation is performed with a combination of endings and auxiliary verbs. The verb esser (to be) is exceptional in being written es in the present tense, while the esse form is the imperative.

The present participle is used to qualify nouns: un cat ama, un amant cat (a cat loves, a loving cat) and is often seen in adjectives such as fatigant (tiring, from fatigar, to tire). The gerund is used to indicate another action or state of being going on at the same time: scriente un missage, yo videt que... (writing a message, I saw that...).

Adverbs

Interlingue has primary adverbs and derived adverbs. Primary adverbs are not generated from other parts of speech and are thus not formed using any special endings: tre (very), sempre (always), etc.

Derived adverbs are formed by adding the suffix -men to an adjective (rapid = quick, rapidmen = quickly) Adjectives may be used as adverbs when the sense is clear:

Il ha bon laborat = He has worked well ("He has worked good")

Noi serchat long = We looked for a long time ("We searched long")

Derivation

The application of de Wahl's rule to verbs, and the usage of numerous suffixes and prefixes, was created to resolve irregularities that had plagued creators of language projects before Occidental, who were forced to make the choice between regularity and unnatural forms, or irregularity and natural forms. The prevailing view before its application was that natural forms needed to be sacrificed for the sake of regularity, while those that opted for naturalism were forced to admit numerous irregularities when doing so (Idiom Neutral for example had a list of 81 verbs with special radicals used when forming derivatives), a paradox summed up by Louis Couturat in 1903 as follows:

In short, one finds oneself confronted by the antinomy that the words that are international are not regular, and the words that are regular are not international; the prevailing opinion was that regularity should be sacrificed for internationality in the formation of words.

The rules created by de Wahl to resolve this were first described in 1909 in the Discussiones of Peano's Academia pro Interlingua and are as follows:

1. If, after the removal of -r or -er of the infinitive, the root ends in a vowel, the final -t is added. Crear (to create), crea/t-, crea/t/or, crea/t/ion, crea/t/iv, crea/t/ura.
2. If the root ends in consonants d or r, they are changed into s: decid/er (to decide), deci/s-, deci/s/ion deci/s/iv. Adherer (to adhere), adhe/s-, adhe/s/ion
3. In all other cases, with six exceptions, the removal of the ending gives the exact root: duct/er, duct-, duct/ion.

Once these rules were applied, Occidental was left with six exceptions. They are:

1. ced/er, cess- (concession)
2. sed/er, sess- (session)
3. mov/er, mot- (motion)
4. ten/er, tent- (temptation)
5. vert/er, vers- (version)
6. veni/r, vent- (advent)

Suffixes are added either to the verbal root or the present theme of the verb (the infinitive minus -r). An example of the latter is the suffix -ment: move/r, move/ment (not movetment), experi/r, experi/ment (not experitment), and -ntie (English -nce): tolera/r (tolerate), tolera/ntie, existe/r (exist), existe/ntie.

Affixes

The major prefixes and suffixes used in word derivation in Interlingue are added to either the present theme (infinitive minus -r), verbal root (infinitive minus two preceding vowels), or perfect theme (present theme + t or +s for verbs finishing with -d or -r) of verbs, as well as other types of speech. Some of the affixes used are:

Ease of learning

As an international auxiliary language, ease of learning through regular derivation and recognizable vocabulary was a key principle in Occidental's creation. Cosmoglotta often featured letters from new users and former users of other international languages (primarily Esperanto and Ido) attesting to the language's simplicity. New users demonstrated their quick command of the language, and experienced auxiliary language users shared their experiences. Because many users of the language had encountered it after first learning Esperanto, data on learnability of the language for those without experience in other international auxiliary languages is scarce. One experiment to ascertain learning time was carried out in the years 1956 to 1957 in a Swiss Catholic high school (gymnasium) in Disentis on the time required to learn the language. The experiment showed that the students participating in the study, who had previous experience with French, Latin, and Greek, mastered both written and spoken Interlingue after 30 hours of study.

Some original texts published as separate books are:

• Krasina, raconta del subterrania del Moravian carst, published in 1938 by Jan Amos Kajš.
• Li astres del Verne, a collection of original poetry by Jaroslav Podobský, published both in 1935 and 1947.

Example texts

Li material civilisation, li scientie, e mem li arte unifica se plu e plu. Li cultivat europano senti se quasi in hem in omni landes queles have europan civilisation, it es, plu e plu, in li tot munde. Hodie presc omni states guerrea per li sam armes. Sin cessa li medies de intercomunication ameliora se, e in consequentie de to li terra sembla diminuer se. Un Parisano es nu plu proxim a un angleso o a un germano quam il esset ante cent annus a un paisano frances.

Possible pronunciation: [li mateˈrjaːl tsivilizaˈtsjoːn li ˈstsjentsje e ˈmeːm li ˈarte uˈniːfika se ˈpluː e ˈpluː li kultiˈvaːt ewroˈpaːno ˈsenti se ˈkwaːzi in ˈheːm in ˈomni ˈlandes ˌkweːles ˈhaːve ewroˈpaːn tsivilizaˈtsjoːn it ˈes ˈpluː e ˈpluː in li ˈtoːt ˈmunde hoˈdiːe ˈprɛsk ˈomni ˈstaːtes ˈgwɛrea per li ˈsaːm ˈarmes sin ˈtsɛsa li ˈmeːdjes de interkomunikaˈtsjoːn ameˈljoːra se e in konseˈkwentsje de ˈtoː li ˈtɛra ˈsembla dimiˈnweːr se un pariˈzaːno es ˈnuː plu ˈprɔksim a un aŋˈgleːzo o a un ʒerˈmaːno kwam il eˈseːt ˌante ˈtsent ˈanus a un pa.iˈzaːno franˈtseːs]

Translation: "Material civilization, science, and even art unify themselves more and more. The educated European feels himself almost at home in all lands that have European civilization, that is, more and more, in the entire world. Today almost all states war with the same armaments. Without pause the modes of intercommunication improve, and in consequence from that the world seems to decrease. A Parisian is now closer to an Englishman or a German than he was a hundred years before to a French peasant."

See also

• List of interlingue-ists and Occidentalists (in Interlingue)
• List of journals and bulletins in Occidental (in Interlingue)
• Comparison between Interlingue and Interlingua
• Li Europan lingues

References

1. "Kosmoglott, 1922, p. 1". Archived from the original on 26 June 2021. Retrieved 24 July 2021.
2. "Cosmoglotta B, 1945, p. 8". anno.onb.ac.at. Archived from the original on 15 April 2021. Retrieved 18 December 2018.
3. "Cosmoglotta A, 1946, p. 18". Archived from the original on 13 April 2021. Retrieved 20 December 2020.
4. ^ "Cosmoglotta A, 1946, p. 18". Archived from the original on 15 April 2021. Retrieved 30 January 2019.
5. "Kosmoglott, 1925, p.40". Archived from the original on 15 April 2021. Retrieved 19 February 2019. Translation: "I found the most precise sense of "-atu" for example no earlier than 1924 ... maybe with time I will also find the precise sense of "-il, -esc, -itudo", etc."
6. "Cosmoglotta B, 1947, p. 15". anno.onb.ac.at. Archived from the original on 15 April 2021. Retrieved 28 December 2018.
7. "Cosmoglotta A, 1946, p. 27". Archived from the original on 15 April 2021. Retrieved 6 January 2019.
8. "Kosmoglott 001, 1922, p. 4". Archived from the original on 15 April 2021. Retrieved 2 August 2020.
9. "Transcendental Algebra". Archived from the original on 22 August 2019. Retrieved 30 November 2019.
10. "Kosmoglott, 1925, p.7". anno.onb.ac.at. Archived from the original on 13 April 2021. Retrieved 28 December 2018.
11. "Kosmoglott, 1924, p. 14". Archived from the original on 15 April 2021. Retrieved 7 February 2019. Translation: "He asserts that Occidental, despite being easily readable, is very difficult to write and that one could hardly find 10 people in the world able to write it without errors. Well, with me alone there is already three times that number corresponding in good Occidental."
12. ""Kosmoglot" – la unua interlingvistika societo en Ruslando" (PDF). Archived (PDF) from the original on 22 September 2020. Retrieved 11 August 2020.
13. Wahl, E. de (1925). Radicarium directiv del lingue international (Occidental) in 8 lingues. Tallinn. OCLC 185538723.{{cite book}}: CS1 maint: location missing publisher (link)
14. "Cosmoglotta, 1927, p. 1". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
15. ^ "Cosmoglotta A, 1947, p. 17". Archived from the original on 14 February 2021. Retrieved 18 January 2019.
16. "Helvetia, January 1930". Archived from the original on 15 April 2021. Retrieved 4 September 2020. ...Occ. esset unesimli propagat per Germanes, Austrianes, Svedes, Tchecoslovacos e solmen ante du annus ha penetrat in Francia.
17. "Cosmoglotta B, 1937, p.79". Archived from the original on 15 April 2021. Retrieved 13 March 2019.
18. "Cosmoglotta A, 1933, p. 20". Archived from the original on 15 April 2021. Retrieved 11 April 2019.
19. "Cosmoglotta B, 1935, p. 30". Archived from the original on 15 April 2021. Retrieved 20 February 2019.
20. "Cosmoglotta A, 1931, p. 92". Archived from the original on 27 October 2020. Retrieved 22 October 2020. Un commercial firma in Tchecoslovacia scri spontanmen al redaction: "Mi firma...opera in Italia solmen per li medium de Occidental, e to in omni romanic states. To es un miraculos fact. Vu posse scrir a omni romano in Occidental e il va comprender vor idées."
21. "Cosmoglotta A, 1934, p. 52". Archived from the original on 15 April 2021. Retrieved 13 April 2019.
22. "Cosmoglotta B, 1935, p. 12". Archived from the original on 15 April 2021. Retrieved 20 February 2019.
23. "Cosmoglotta B (Cosmoglotta-Informationes), 1935, p. 1". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
24. "Cosmoglotta B, 1936, p. 17". Archived from the original on 15 April 2021. Retrieved 23 February 2019.
25. "Cosmoglotta B, 1936, p. 38". Archived from the original on 15 April 2021. Retrieved 23 February 2019.
26. "Cosmoglotta A, 1948, pg. 5". Archived from the original on 3 February 2021. Retrieved 20 January 2019. (Translation) Regrettably, public propagation of Occidental was not possible in Germany from 1935 (the year when artificial languages were banned in Germany) until the end of the war...
27. Cosmoglotta B, 1945, p. 12. Archived 15 April 2021 at the Wayback Machine Translation öf the last pre-war Occidental postcard from Austria sent to Switzerland in December 1938: "My sadness from not being able to continue my interlinguistic work continues and has made me almost melancholic. Please do not send me mail in Occidental."
28. Cosmoglotta B, 1944, p. 109. Archived 15 April 2021 at the Wayback Machine Translation: "The reality is that Occidental, like the other international languages, is prohibited in Germany, that the Occidental societies have been disbanded there (also in Czechoslovakia and Austria) even before the war, and that only regime change in those countries will make Occidental propagation a possibility again.
29. "Cosmoglotta A, 1948, p. 122". Archived from the original on 24 March 2021. Retrieved 2 February 2019. English translation: The final exchange of telegrams between us was your telegram in March 1938 where you asked me if I would go to The Hague to participate in the IALA conference, and my quick negative response, not followed by a letter explaining why. You certainly had guessed the cause, but you cannot know what actually happened. Immediately after the coming of Hitler I had the "honour", as president of an international organisation, to be watched by the Gestapo, which interrogated me multiple times and searched through my house, confiscating a large part of my correspondence and my interlinguistic material."
30. "Cosmoglotta B, 1948, p. 33". Archived from the original on 15 April 2021. Retrieved 16 January 2019. Translation: "I myself lost my entire rich Occidental-Interlingue possessions in 1936 through home raids by the infamous Gestapo...How thankful you must be to your governments which have avoided such catastrophes that our land (Germany) has suffered, one after another, for 35 years now."
31. "Cosmoglotta A, 1946, p. 32". Archived from the original on 15 April 2021. Retrieved 6 January 2019.
32. "Cosmoglotta B, 1946, p. 11". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
33. "Cosmoglotta B, 1947, p. 107". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
34. "Cosmoglotta B, 1947, p. 100". anno.onb.ac.at. Archived from the original on 15 April 2021. Retrieved 2 January 2019.
35. "Cosmoglotta A, 1948, p. 100". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
36. "Cosmoglotta B, 1948, p. 99". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
37. Barandovská-Frank, Vĕra. "Latinidaj planlingvoj (AIS-kurso, 1 studunuo)" (PDF). Archived (PDF) from the original on 23 January 2019. Retrieved 22 January 2019. Post la okupo de Tallinn per sovetia armeo estis deportita kaj malaperinta la edzino de De Wahl, lia domo komplete forbruliĝis dum bombardado, detruiĝis lia riĉa biblioteko kaj manuskriptoj. Post la alveno de naziaj trupoj De Wahl rifuzis translokiĝon al Germanio kaj estis enkarcerigita. Por savi lin, liaj amikoj lasis proklami lin mense malsana. En la jaro 1944, 77-jaraĝa, li eniris sanatorion Seewald apud Tallinn kaj restis tie ankaŭ post la milito, ne havante propran loĝejon
38. "Cosmoglotta A, 1948, p. 98". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
39. ^ "Plan de aparition de KOSMOGLOTT 1922–1926 e COSMOGLOTTA 1927–1972 (Austrian National Library)". Archived from the original on 15 April 2021. Retrieved 28 January 2019.
40. "Cosmoglotta B, 1941, p. 1". Archived from the original on 9 July 2021. Retrieved 5 July 2021.
41. "Cosmoglotta B, 1943, p. 85". Archived from the original on 9 July 2021. Retrieved 5 July 2021.
42. "Cosmoglotta B, 1946, p.8". anno.onb.ac.at. Archived from the original on 7 February 2021. Retrieved 22 December 2018. English translation: "At the assembly of the Swiss Association for Occidental in Bienne it was noted with satisfaction that despite the war the cooperation at least with the Swedish worldlanguage friends was always able to be maintained, in that the letters and telegrams written in Occidental passed by the censors without problem."
43. "Cosmoglotta B, 1943, p. 6". Archived from the original on 15 April 2021. Retrieved 10 December 2018.
44. "Cosmoglotta B, 1945, p. 15". Archived from the original on 15 April 2021. Retrieved 10 December 2018.
45. "Cosmoglotta B, 1946, p.9". anno.onb.ac.at. Archived from the original on 15 April 2021. Retrieved 22 December 2018.
46. "Cosmoglotta B, 1945, p. 119". anno.onb.ac.at. Archived from the original on 13 April 2021. Retrieved 22 December 2018. English translation: "When I arrived in Prague after my escape from the concentration of Leitmeritz, I had literally nothing except a ragged prison uniform, the so-called "pyjama" of the prison camps...Soon after I arrived in Prague I published an ad to search friends of the international language..."
47. "Cosmoglotta B, 1945, p. 83". anno.onb.ac.at. Archived from the original on 15 April 2021. Retrieved 22 December 2018. English translation: "The letters from France are starting to arrive in Switzerland. Especially appreciated are those from Mr. Lerond, a teacher in Bréville tra Donville (Manche) and from Mr. René Chabaud, who happily returned safe and sound from a prison camp in Germany."
48. "Cosmoglotta B, 1946, p. 108". Archived from the original on 1 August 2021. Retrieved 1 August 2021.
49. "Cosmoglotta B, 1946. p. 119-120". Archived from the original on 13 April 2021. Retrieved 17 December 2020.
50. "Cosmoglotta B, 1945, p. 24". Archived from the original on 30 March 2021. Retrieved 10 December 2018.
51. ^ Cosmoglotta B, 1943, p. 85: Archived 15 April 2021 at the Wayback Machine English translation: "Because the president and secretary of the Academy are located in countries in a state of war, the leading Occidentalists of the neutral countries, Switzerland and Sweden, believe it necessary to set up an INTERIM ACADEMY which will function until the other will be able to resume its work. The decisions of this interim academy will be conditional, i.e.: must be validated by the regular Academy after the war, and due to that it will deliver to it all documents justifying its decisions, with detailed reasons."
52. "Kosmoglott, 1922, p. 65". Archived from the original on 13 April 2021. Retrieved 16 December 2020.
53. "Cosmoglotta A, 1927, p. 95". Archived from the original on 15 April 2021. Retrieved 22 August 2020.
54. Cosmoglotta B, 1945, p. 3: Archived 15 April 2021 at the Wayback Machine Translation: "For some hundreds of international words there are two forms between which it is not easy to know which one is better. E. de Wahl wisely wrote both in the first dictionaries, with the intention to let practice make the decision."
55. ^ Kosmoglott, 1925, p. 14. May 1925. Archived from the original on 13 April 2021. Retrieved 16 December 2020.
56. "Cosmoglotta B, 1944, p. 66". Archived from the original on 15 April 2021. Retrieved 7 December 2018.
57. Schmidt, Dr. Thomas (2020). GROSSES MODERNES WÖRTERBUCH INTERLINGUE (OCCIDENTAL) – DEUTSCH. Berlin. p. 2. Von seiner Entstehung bis zum Ausbruch des Zweiten Weltkrieges 1939 wurde die Rechtschreibung der Sprache deutlich vereinfacht. Diese sogenannte "simplificat ortografie" löste die alte "historic ortografie" ab.{{cite book}}: CS1 maint: location missing publisher (link)
58. "Cosmoglotta B, 1938, p. 82". Archived from the original on 15 April 2021. Retrieved 23 March 2019.
59. "Cosmoglotta B, 1938, p. 82". Archived from the original on 15 April 2021. Retrieved 23 March 2019.
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61. Esterhill, Frank J. (2000). Interlingua Institute: A History. Interlingua Institute. pp. ix. ISBN 9780917848025. Archived from the original on 13 April 2021. Retrieved 25 December 2020.
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67. Barandovská-Frank, Vĕra. "Latinidaj planlingvoj (AIS-kurso, 1 studunuo)" (PDF). Archived (PDF) from the original on 23 January 2019. Retrieved 22 January 2019. Alphonse Matejka konstatis, ke la publikigita vortprovizo de Interlingua en 90% kongruas kun tiu de Interlingue, se oni ne rigardas ortografion (historian kaj simpligitan) kaj uzon de finaj vokaloj.
68. Gode, Alexander; Blair, Hugh (1951). "Appendix 1 (Double-Stem Verbs)". A grammar of Interlingua. International Auxiliary Language Association. Archived from the original on 23 October 2020. Retrieved 21 October 2020.
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72. "Cosmoglotta B, 1946, p. 4". Archived from the original on 13 April 2021. Retrieved 17 December 2020.
73. "Cosmoglotta B, 1948, p. 12". Archived from the original on 15 April 2021. Retrieved 26 January 2019. Translation: "Unfortunately, in 1947 we were not able to publish more than two printed editions: the enormous increase of printing costs and the difficulties transferring the credits accumulated in certain countries were the reasons why we had to be prudent about expenses...even though printing costs have increased by 5 times compared to before the war, the subscription fees have remained the same. Regretfully we have been forced to increase the subscription price this year to 8 Swiss francs..."
74. ^ Harlow, Don. The Esperanto Book, Chapter 3: "The Esperanto Book: 3". Archived from the original on 4 February 2012. Retrieved 9 September 2008..
75. "Historia de Interlingua". www.interlingua.com. Retrieved 20 November 2021.
76. "Cosmoglotta B, 1948, p. 7". Archived from the original on 15 April 2021. Retrieved 1 February 2019. Li recent evenimentes politic e li division del munde in du sectores de influentie (occidental e oriental) ha mettet nor propagatores de quelc landes in delicat situation. It ha devenit desfacil nu parlar pri un lingue de quel li nómine in cert landes evoca suspectiones in li circul politic. Pro to nor Centrale ha recivet ti-ci mensus, precipue de Tchecoslovacia, propositiones usar vice li nómine de Occidental ti de Interal (=INTER/national Auxiliari lingue).
77. Barandovská-Frank, Vĕra. "Latinidaj planlingvoj (AIS-kurso, 1 studunuo)" (PDF). Archived (PDF) from the original on 23 January 2019. Retrieved 22 January 2019. La postmilita divido de Eŭropo en orientan kaj okcidentan sektoron sentigis la nomon "Occidental" propagando por kapitalisma okcidento, tial venis proponoj ŝanĝi la nomon.
78. Pigal, Engelbert (1950). Interlingue (Occidental), die Weltsprache. Vienna, Austria: Gesellschaft Cosmoglotta. p. 4. OCLC 67940249. Schließlich wurde aus Gründen der Neutralität mit 1. September 1949 der Name der Sprache in Interlingue geändert.
79. "Cosmoglotta A, 1948, p. 99". Archived from the original on 13 April 2021. Retrieved 1 February 2019. Translation: "One should not forget that the name Occidental had been selected in 1922, when it had absolutely no political significance. And today, by strange chance the title of the Occidental-Union coincides with that of a political league opposed to the Russians. It is possible that in Tallinn they considered de Wahl a person requiring police surveillance. How to protest and explain the misunderstanding from so far away?"
80. "Occidental A, 1948, p. 98". Archived from the original on 13 April 2021. Retrieved 15 December 2020.
81. "Cosmoglotta B, 1948, p. 7". Archived from the original on 15 April 2021. Retrieved 1 February 2019.
82. "Biographias: Ric(hard) Berger". Archived from the original on 13 April 2021. Retrieved 18 December 2020. Postea, de 1934 a 1950, ille esseva co-redactor del magazin del Occidental-Union, "Cosmoglotta", e esseva le interprenditor in 1948 quando occidental – presentate per le estoniano Edgar de Wahl – cambiava nomine a interlingue.
83. "Cosmoglotta, summer 2000". Archived from the original on 15 December 2018. Retrieved 13 December 2018. Proque yo esperat que noi vell posser un vez fusionar con Interlingua, ti-ci nov nómine devet facilisar li transition por nor membres, evitante talmen, coram li publica, un nov radical changeament de nómine. Yo dunc proposit, in februar 1948, in Cosmoglotta, remplazzar li nómine Occidental per Interlingue malgré li oposition del presidente del Academie.
84. "Cosmoglotta A, 1949, p. 112". Archived from the original on 24 July 2020. Retrieved 9 February 2019. English translation: "91% of the voters have adopted the proposition of the Senate of the Occidental Union, i.e. the new name: INTERLINGUE. The usage of the name INTERLINGUE, or if one wishes INTERLINGUE (Occ.) is valid from 1.9.1949."
85. Barandovská-Frank, Vĕra. "Latinidaj planlingvoj (AIS-kurso, 1 studunuo)" (PDF). Archived (PDF) from the original on 23 January 2019. Retrieved 22 January 2019. ...la simileco inter ambaŭ interlingvoj estas tiom granda, ke certe eblos iu racia sintezo inter ili, konkludis Matejka en 1951...La senato de Interlingue-Union kaj la Interlingue-Academie pritraktis la proponojn, ke (1) Interlingue Union iĝu kolektiva membro de IALA kaj (2) Interlingue-Union restu favora al estonta aktiveco de IALA kaj morale subtenu ĝin. La unua propono ne estis akceptita, sed jes la dua, do praktike kunlaboro kaj subteno de Interlingua.
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93. "Cosmoglotta A, 1927, p. 64". Archived from the original on 15 April 2021. Retrieved 18 October 2020. Yo confesse que yo vide poc in li Europan cultura del ultim 1900 annus quel es tam remarcabilmen preciosi. To quo es max visibil es tyrannie, oppression, guerres e nigri superstition.
94. "Cosmoglotta A, 1949, p.108". Archived from the original on 24 July 2020. Retrieved 18 October 2020. In ti témpor yo esset in Sydney, e pro que yo havet grand interesse por li indigenes e volet converter mi blanc fratres a un bon opinion pri ili, yo scrit in li presse pri ti heroic action e comparat li brutalitá del blanc rasse con li conciliantie e self-sacrificie del negros.
95. ^ "Kosmoglott, 1924, p. 2". Archived from the original on 15 February 2021. Retrieved 16 February 2019. Tal paroles nu ancor ne tro numerosi, ja in li secul passat ha augmentat in grand quantitá, e in futur va crescer in exorbitant proportion, quande, per li international comunication, li idées del stabil oriental cultures va inundar e influer li maladi Europa, quel just nu perdi su equilibrie.
96. "Cosmoglotta A, 1937". Archived from the original on 15 April 2021. Retrieved 29 January 2019. JAPAN: Kokusaigo-Kenkyusho, Daita 11-784, Setagaya, TOKIO (Pch. Tokio 62 061)
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98. "Litt incontra in Ulm". IE-MUNDE (Revúe in Interlingue-Occidental) Numeró 7 – Octobre 2013.
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103. Li sercha in li castelle Dewahl e altri racontas.
104. Fabules, racontas e mites.
105. "Cosmoglotta A, 1927, p. 56". Archived from the original on 13 April 2021. Retrieved 20 December 2020.
106. Lermontov, Mikhail (1896), Esperanto: Princidino Mary (PDF), archived (PDF) from the original on 22 September 2021, retrieved 20 December 2020
107. "Cosmoglotta A, 1946, p. 19". Archived from the original on 13 April 2021. Retrieved 30 January 2019.
108. "Cosmoglotta A, 1929, p. 101". Archived from the original on 11 May 2021. Retrieved 11 May 2021. Inter omni projectes, Occidental es li sol quel in altissim gradu ha penat satisfar li amalgamation del du quasi contradictori postulates: regularitá e naturalitá.
109. "Cosmoglotta B, 1938, p. 64". Archived from the original on 11 May 2021. Retrieved 11 May 2021. Do secun li principies fundamental de Occidental: «junter quant possibil regularitá e naturalitá», just li form «radica» es li sol rect e apt por ti parol.
110. "Cosmoglotta A, 1929, p. 76". Archived from the original on 11 May 2021. Retrieved 11 May 2021. Nu, si li europan popules va un die introducter un tal radical ortografic reforma in su lingues quam li turcos, it va esser natural que anc li lingue international va secuer ti reforma, ma til tande, noi pensa, noi have ancor sufficent témpor e prefere ne chocar li publica e destructer li etymologie, do li regularitá e naturalitá.
111. "Cosmoglotta A, 1929, p. 10". Archived from the original on 11 May 2021. Retrieved 11 May 2021. Qui in li divers revues interlinguistic...retrosecue li labores de Wahl til lor origines, ti va constatar, que li autor de Occidental ja in su unesim publicationes esset un consecuent representant e protagonist del strict naturalitá del futuri lingue international; ma in contrast a altri interlinguistes del camp naturalistic, Wahl ha sempre accentuat que ti ci naturalitá deve accordar con plen regularitá del structura del lingue.
112. "Cosmoglotta B, 1935, p. 14". Archived from the original on 12 May 2021. Retrieved 11 May 2021. Occidental esset publicat de Prof. E. de Wahl in 1922. It ha monstrat nos que li vocabularium del grand lingues de civilisation posse esser regularisat per un sistema de derivation admirabilmen simplic, sin arbitrari formes, sin inventet regules». Pro to Occidental es un excellent combination de naturalitá e regularitá. Ti du caracteres merita esser expresset in li insigne e yo proposi representar ti du atributes per li equigambi rect-triangul sur li diametre de un circul. Li equigambie expresse que li naturalitá e li regularitá esset tractat con egal cuidas per sr. de Wahl.
113. "Cosmoglotta A, 1946, p. 18". Archived from the original on 13 April 2021. Retrieved 20 December 2020.
114. "Cosmoglotta A, 1946, p. 19". Archived from the original on 13 April 2021. Retrieved 20 December 2020.
115. "Kosmoglott, 1923, p. 9". Archived from the original on 15 April 2021. Retrieved 30 January 2019. Translation: "But I do not understand why the word "celibatario" does not fit Ido. If you have the root "celibat" you derive words such as "legatario, millionario" etc. in the same way. Someone who like M. de B does not understand the sense of the suffix in "secundari" may learn the word as a whole, as it is done in Ido, but I think it is better to have a perhaps somewhat fluctuating suffix than to learn 100 new root words, where I never know if the inventors in one case have preferred an international word or in another a "logical" new formation that I could never even imagine."
116. Barandovská-Frank, Vĕra. "Latinidaj planlingvoj (AIS-kurso, 1 studunuo)" (PDF). Archived (PDF) from the original on 23 January 2019. Retrieved 22 January 2019. Male al la "Regul De Wahl", kiu ebligas en Interlingue regulajn derivaĵojn, Interlingua konservas plurajn radikojn, ekz. ag/act (agente/actor), frang/fract (frangibil/fraction), ung/unct (unguento/unction), tiel ke sen lingvistikaj antaŭscioj pri infinitiva kaj supina formoj oni ne povas diveni la ĝustan rezulton.
117. "Cosmoglotta A, 1946, p. 22". Archived from the original on 13 April 2021. Retrieved 21 December 2020.
118. "Cosmoglotta A, 1937, p. 73". Archived from the original on 13 April 2021. Retrieved 21 December 2020.
119. Jespersen, Otto (1929). An International Language. Routledge. p. 52. ISBN 1135662606.
120. ^ "Kosmoglott, 1922, p. 19". Archived from the original on 15 April 2021. Retrieved 16 February 2019.
121. "Cosmoglotta B, 1941, p. 15". Archived from the original on 15 April 2021. Retrieved 16 February 2019.
122. "Cosmoglotta A, 1927, p. 86". Archived from the original on 15 April 2021. Retrieved 15 December 2020.
123. "Cosmoglotta A, 1927, p.95". Archived from the original on 15 April 2021. Retrieved 4 March 2019.
124. Cosmoglotta B, 1945, p. 90 Archived 15 April 2021 at the Wayback Machine: Translation: "Occidental being a neo-Latin language, the influence of the languages French, Italian and Spanish will probably still be greater than that of the Anglo-Saxons."
125. Cosmoglotta B, 1944, p. 104 Archived 15 April 2021 at the Wayback Machine: Translation: "and what else is Occidental than a simplified Italian, or, to state it more generally, the simplified commonality of all Romance languages?"
126. Cosmoglotta B, 1944, p. 116: Archived 15 April 2021 at the Wayback Machine Translation: "Latin is dead, even though it is still used for a few limited purposes. But the mother language Latin still lives in her daughters, the Romance languages—and Occidental is one of them."
127. "Cosmoglotta A, 1927, p. 19". Archived from the original on 15 April 2021. Retrieved 25 February 2019.
128. "Helvetia, August 1929". Archived from the original on 15 April 2021. Retrieved 1 August 2020.
129. "Helvetia, August 1929". Archived from the original on 15 April 2021. Retrieved 3 August 2020.
130. "Cosmoglotta B, 1945, p. 7". Archived from the original on 15 April 2021. Retrieved 1 August 2020.
131. "Cosmoglotta B, 1945, p. 32". Archived from the original on 15 April 2021. Retrieved 1 August 2020.
132. "Cosmoglotta B, 1945, p. 38". Archived from the original on 13 April 2021. Retrieved 22 December 2020.
133. "ÖNB-ANNO – Cosmoglotta (Serie B)". anno.onb.ac.at. Archived from the original on 15 April 2021. Retrieved 2 January 2019.
134. Mulaik, Stanley, Ph.D. "Standardization of Grammatical Particles" (PDF). Archived (PDF) from the original on 13 April 2021. Retrieved 22 December 2020.{{cite web}}: CS1 maint: multiple names: authors list (link)
135. Matejka, Alphonse. "Autonomie e Regularitá in li Lingue International" (PDF). Archived (PDF) from the original on 15 February 2021. Retrieved 22 December 2020. We do not hesitate to form words like "ludette, plorada, substantival, plumallia, tassade, sucrage, glotton, stridore, hesitatori, successosi, flexura" etc. etc. without asking ourselves whether these words are international or not. Even when they are in fact not international, they nevertheless never have the artificial appearance that characterizes most of the derived words in Esperanto and Ido. They always represent forms that living languages would have been able to produce using their own means.
136. ^ de Wahl, Edgar (February 1929). "International o Romanic (Cosmoglotta A, 1929, pp. 27 – 33)". Archived from the original on 15 April 2021. Retrieved 9 September 2020. "Lasciate ogni nazionalismo, voi ch'entrate" in li sant dominia del interhoman comprension.
137. "Cosmoglotta B, 1936, p. 12". Archived from the original on 13 April 2021. Retrieved 22 December 2020.
138. "Cosmoglotta B, 1935, p.3". Archived from the original on 15 April 2021. Retrieved 23 February 2019.
139. ^ "Cosmoglotta B 1936, p. 11".
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141. "Occidental Course in 10 Lessons (English translation)" (PDF).
142. L'OCCIDENTAL: Langue d'intercompréhension immédiate (1928)
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144. "ÖNB-ANNO – Cosmoglotta (Serie B)". anno.onb.ac.at. Retrieved 27 December 2021.
145. "Curs de Occidental (Interlingue) – Ric Berger" (PDF).
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148. "Pronunciation – Interlingue for Beginners". occidental-lang.com. Archived from the original on 9 July 2021. Retrieved 6 July 2021.
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153. "Wikibooks: Esperanto/Appendix/Table of correlatives". Archived from the original on 13 April 2021. Retrieved 22 September 2021.
154. "Occidental Course in 10 Lessons" (PDF). Archived (PDF) from the original on 24 October 2020. Retrieved 10 March 2020.
155. "Cosmoglotta A, 1938, p. 69". anno.onb.ac.at. Retrieved 9 January 2022.
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158. Couturat, Louis; Leau, Léopold (1903). Histoire de la langue universelle. Robarts – University of Toronto. Paris Hachette. Translation: "En somme, on se trouvait acculé à cette antinomie : les mots internationaux ne sont pas réguliers, et les mots réguliers ne sont pas internationaux; l'opinion dominante était qu'il fallait sacrifier la régularité à l'internationalité dans la formation des mots. Julius Lott concluait qu'on ne peut pas éviter les irrégularités des langues naturelles, et VON Wahl, qu'on ne peut pas donner à la L. I. plus de simplicité et de régularité que n'en comportent nos langues."
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163. "Cosmoglotta B, 1938, p. 80". Archived from the original on 15 April 2021. Retrieved 23 March 2019.
164. "Cosmoglotta B, 1936, p.38". Archived from the original on 15 April 2021. Retrieved 26 February 2019.
165. "Cosmoglotta A, 1927, p.107". Archived from the original on 15 April 2021. Retrieved 5 March 2019.
166. Barandovská-Frank, Vĕra. "Latinidaj planlingvoj (AIS-kurso, 1 studunuo)" (PDF). Adam Mickiewicz University in Poznań. Archived (PDF) from the original on 23 January 2019. Retrieved 22 January 2019. En svisa katolika gimnazio en Disentis (Grizono) okazis en la jaroj 1956–1957 eksperimento pri lerntempo-longeco bezonata por Interlingue. La lernantoj, kiuj havis antaŭkonojn de la lingvoj franca, latina kaj greka, regis Interlingue skribe kaj parole post 30 instruhoroj.
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External links

• Official website of the Interlingue-Union
• Official website of the language

Grammar, dictionaries and tools

• "Grammar of Interlingue in English" by Dr. F Haas
• English-Interlingue dictionary by Kemp and Pope, also available as a text file
• "Occidental in 10 lessons by A.Z. Ramstedt", English translation of an original German course
• English online dictionary with translation memories
• "Resume de gramatica de Interlingue (Occidental)" at the Interlingue Wikisource
• Online dictionary in English and Russian
• "Radicarium directiv del Lingue International (Occidental) in 8 lingues (1925)", article by Edgar de Wahl (note: uses old spelling)
• 1966 beginner's guide by Wilfred E. Reeve
• Interlingue spell checker for Firefox

Texts

• Cosmoglotta A (1922–1950) and Cosmoglotta B (1935–1948) at the Austrian National Library
• Helvetia (bulletin for the Swiss Association for Occidental): 1928, 1929 – 1933 at the Austrian National Library
• Cosmoglotta and Helvetia back issues, with modern orthography
• Cosmoglotta issues from 2000 to 2004
• Cosmoglotta issues from 2021 onwards
• Various scanned books in Occidental
• Books in Occidental/Interlingue at the Austrian National Library

v t e Interlingue
Language	Grammar (De Wahl's rule) • History • Literature • Comparison between Interlingue and Interlingua
Journals and magazines	Cosmoglotta • IE Munde
Occidentalists	Ric Berger • Karl Janotta • Jacob Linzbach • Alphonse Matejka • Heinrich Nidecker • Engelbert Pigal • A.Z. Ramstedt • Hermann Alfred Tanner • Edgar de Wahl
Bibliography of Interlingue • Interlingue Misplaced Pages

• Interlingue
• International auxiliary languages
• Constructed languages
• Constructed languages introduced in the 1920s
• 1922 introductions