Vowel hiatus

(Redirected from Diaeresis (linguistics)) Syllabic separation of two adjacent vowels "Diaeresis (linguistics)" redirects here. For the diacritic, see Diaeresis (diacritic).

Sound change and alternation
Metathesis Quantitative metathesis
Lenition Consonant gradation Consonant voicing and devoicing Assibilation Spirantization L-vocalization Debuccalization
Fortition
Epenthesis Prothesis Paragoge Unpacking Vowel breaking
Elision Apheresis Syncope Apocope Haplology Cluster reduction
Transphonologization Compensatory lengthening Nasalization Tonogenesis Floating tone
Assimilation Fusion Coarticulation Palatalization Velarization Labialization Final devoicing Metaphony (vowel harmony, umlaut) Consonant harmony
Dissimilation
Sandhi Liaison, linking R Consonant mutation Tone sandhi Vowel hiatus Synalepha Elision Crasis Synaeresis and diaeresis Synizesis
Other types Apophony Affrication Gemination Clipping Fronting Raising Betacism Iotacism Fusion Merger Compensatory lengthening Monophthongization Rhotacism Rhinoglottophilia Sulcalization Shm-reduplication Consonant mutation Vowel shift Chain shift
v t e

In phonology, hiatus (/haɪˈeɪtəs/ hy-AY-təs) or diaeresis (/daɪˈɛrəsɪs, -ˈɪər-/ dy-ERR-ə-siss, -⁠EER-; also spelled dieresis or diæresis) describes the occurrence of two separate vowel sounds in adjacent syllables with no intervening consonant. When two vowel sounds instead occur together as part of a single syllable, the result is called a diphthong.

Preference

Some languages do not have diphthongs, except sometimes in rapid speech, or they have a limited number of diphthongs but also numerous vowel sequences that cannot form diphthongs and so appear in hiatus. That is the case of Japanese, Nuosu, Bantu languages like Swahili, and Lakota. Examples are Japanese aoi (青い) 'blue/green', and Swahili eua 'purify', both with three syllables.

Avoidance

Many languages disallow or restrict hiatus and avoid it by deleting or assimilating the vowel sound or by adding an extra consonant sound.

Epenthesis

Contraction

In Greek and Latin poetry, hiatus is generally avoided although it occurs in many authors under certain rules, with varying degrees of poetic licence. Hiatus may be avoided by elision of a final vowel, occasionally prodelision (elision of initial vowel), synizesis (pronunciation of two vowels as one without a change in spelling), or contractions such as αει->ᾷ.

Glide formation

The first of the two vowels may be converted to a glide to prevent hiatus. This differs from epenthesis as described above, since only one of the two vowels is retained in its original form. For example, in Luganda, /muiko/ is realised as . In some cases, this may result in the transfer of accent and/or length from the first to the second vowel, e.g. Icelandic sjá ← *sé + a.

Transcription

When necessary to indicate a hiatus, either for general clarity or to distinguish it from a diphthong, IPA uses a period ⟨.⟩ to indicate the syllable break. For example, lower can be transcribed ⟨ˈloʊ.ɚ⟩, with a period separating the first syllable, /loʊ/, from the second syllable, ⟨ɚ⟩.

Marking

Diaeresis

Main article: Diaeresis (diacritic)

In Dutch and French, the second of two vowels in hiatus is marked with a diacritic (or tréma) if otherwise that combination could be interpreted as a single vowel (namely either a diphthong, a long vowel, or as having one of the vowels silent, etc.). Examples are the Dutch word poëzie ("poetry") and the French word ambiguë (feminine form of ambigu, "ambiguous"). This usage is occasionally seen in English (such as coöperate, daïs and reëlect) but has never been common, and over the last century, its use in such words has been dropped or replaced by the use of a hyphen except in a very few publications, notably The New Yorker. It is, however, still sometimes seen in loanwords such as naïve and Noël and in the proper names Zoë and Chloë.

Other ways

In German, hiatus between monophthongs is usually written with an intervening h, as in ziehen [ˈtsiː.ən] "to pull"; drohen [ˈdʁoː.ən] "to threaten"; sehen [ˈzeː.ən] "to see". In a few words (such as ziehen), the h represents a consonant that has become silent, but in most cases, it was added later simply to indicate the end of the stem.

Similarly, in Scottish Gaelic, hiatus is written by a number of digraphs: bh, dh, gh, mh, th. Some examples include abhainn [ˈa.ɪɲ] "river"; latha [ˈl̪ˠa.ə] "day"; cumha [ˈkʰũ.ə] "condition". The convention goes back to the Old Irish scribal tradition, but it is more consistently applied in Scottish Gaelic: lathe (> latha). However, hiatus in Old Irish was usually simply implied in certain vowel digraphs óe (> adha), ua (> ogha).

Correption

Correption is the shortening of a long vowel before a short vowel in hiatus.

References

"diaeresis". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
"Voice and Speech in the Theatre"
"Hiatus resolution". The Blackwell companion to phonology. Blackwell companions to linguistics series. Malden, MA: Wiley-Blackwell. 2011. p. 2. ISBN 978-1-4051-8423-6.
Haugen, Odd Einar (2015). Norröne Grammatik im Überblick: Altisländisch und Altnorwegisch (in German). Translated by van Nahl, Astrid (NetzVersion ed.). Universität Bergen. §22.1.
diaeresis: December 9, 1998. The Mavens' Word of the Day. Random House.
Umlauts in English?. General Questions. Straight Dope Message Board.

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