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Anusvara (Sanskrit: अनुस्वार, IAST: anusvāra), also known as Bindu (Hindi: बिंदु), is a symbol used in many Indic scripts to mark a type of nasal sound, typically transliterated ⟨ṃ⟩ or ⟨ṁ⟩ in standards like ISO 15919 and IAST. Depending on its location in the word and the language for which it is used, its exact pronunciation can vary. In the context of ancient Sanskrit, anusvara is the name of the particular nasal sound itself, regardless of written representation.

Sanskrit

In Vedic Sanskrit, the anusvāra (lit. "after-sound" or "subordinate sound") was an allophonic (derived) nasal sound.

The exact nature of the sound has been subject to debate. The material in the various ancient phonetic treatises points towards different phonetic interpretations, and these discrepancies have historically been attributed to either differences in the description of the same pronunciation or to dialectal or diachronic variation. In a 2013 reappraisal of the evidence, Cardona concludes that these reflect real dialectal differences.

The environments in which the anusvara could arise, however, were well defined. In the earliest Vedic Sanskrit, it was an allophone of /m/ at a morpheme boundary, or of /n/ within morphemes, when it was preceded by a vowel and followed by a fricative (/ś/, /ṣ/, /s/, /h/). In later Sanskrit its use expanded to other contexts, first before /r/ under certain conditions, then, in Classical Sanskrit, before /v/ and /y/.

Later still, Pāṇini gave anusvara as an alternative pronunciation as word-final sandhi, and later treatises also prescribed it at morpheme junctions and within morphemes. In the later written language, the diacritic used to represent anusvara was optionally used to indicate a nasal stop having the same place of articulation as a following plosive, which was written in some evolved scripts (e.g. in Bengali-Assamese) as an additional sandhi letter (no longer as a diacritic) for Vedic transcriptions of Sanskrit, to distinguish it with the anusvara diacritic that was used to transcribe other phonemes.

Devanagari script

In the Devanagari script, anusvāra is represented with a dot (bindu) above the letter (e.g. मं). In the International Alphabet of Sanskrit Transliteration (IAST), the corresponding symbol is ṃ (m with an underdot). Some transcriptions render notation of phonetic variants used in some Vedic shakhas with variant transcription (ṁ).

In writing Sanskrit, the anusvara is often used as an alternative representation of the nasal stop with the same place of articulation as the following plosive. For example, 'limb (of the body)' may be written with either a conjunct, अङ्ग aṅga, or with an anusvara, अंग aṃga. A variant of the anusvara, the anunāsika or 'chandrabindu', was used more explicitly for nasalized vowels, as in अँश aṃśa for 'portion'.

Hindi

In Standard Hindi, the anusvāra is traditionally defined as representing a nasal consonant homorganic to a following plosive, in contrast to the candrabindu (anunāsika), which indicates vowel nasalization. In practice, however, the two are often used interchangeably.

The precise phonetic value of the phoneme, whether it is represented by anusvāra or candrabindu, is dependent on the phonological environment.

Word-finally, it is realized as nasalization of the preceding vowel: kuāṃ , "a well". It results in vowel nasalization also medially between a short vowel and a non-obstruent (kuṃvar "a youth", gaṃṛāsā "a long-handled axe") and, in native words, between a long vowel and a voiceless plosive (dāṃt "tooth", sāṃp "a snake", pūṃch "tail").

It is pronounced as a homorganic nasal, with the preceding vowel becoming nasalized allophonically, in the following cases: between a long vowel and a voiced plosive (tāṃbā "copper", cāṃdī "silver"), between a long vowel and a voiceless plosive in loanwords (dāṃt "repressed", baiṃk "a bank", khazāṃcī "cashier"), and between a short vowel and an obstruent (saṃbhāl- "to support", saṃdūk "a chest").

The last rule has two sets of exceptions in which the anusvāra results only in the nasalization of the preceding short vowel. Words from the first set are morphologically derived from words with a long nasalized vowel (baṃṭ- , "to be divided" from bāṃṭ- , "to divide"; siṃcāī , "irrigation" from sīṃc- , "to irrigate"). In such cases, the vowel is sometimes denasalized (, instead of , ). The second set is composed of a few words like (pahuṃc- , "to arrive" and haṃs- , "to laugh").

Marathi

In Marathi, the anusvāra is pronounced as a nasal that is homorganic to the following consonant (with the same place of articulation). For example, it is pronounced as the dental nasal न् before dental consonants, as the bilabial nasal म् before bilabial consonants, etc . Unlike in other Indic languages, the same dot designating the anusvāra in Marathi is also used to mark a retension of the inherent vowel (it is inconsistently placed over a consonant after which the short central vowel is to be pronounced and not elided).

Nepali

In Nepali, the candrabindu indicates vowel nasalization. Therefore, there is a great deal of variation regarding which occurs in any given position. Many words containing anusvara thus have alternative spellings with a chandrabindu instead of the anusvāra and vice versa. Anusvara is used when there is too little space for the chandrabindu. The anusvāra can represent a nasal vowel, a homoorganic nasal, or both.

Other Indic script languages

Anusvara is used in other languages using Indic scripts as well, usually to represent suprasegmental phones (such as phonation type or nasalization) or other nasal sounds.

Bengali

In the Bengali script, the anusvara diacritic (Bengali: অনুস্বার, romanized: anuswār) is written as a circle above a slanted line (ং), and represents /ঙ্/. It is used in the name of the Bengali language বাংলা and has merged in pronunciation with the letter ঙ unga in Bengali.

Although the anusvara is a consonant in Bengali phonology, it is treated in the written system as a diacritic in that it is always directly adjacent to the preceding consonant, even when consonants are spaced apart in titles or banners: বাং-লা-দে-শ baṅ-la-de-ś, not বা-ং-লা-দে-শ ba-ṅ-la-de-ś for বাংলাদেশ Bangladesh. It is never pronounced with the inherent vowel 'ô', and it cannot take a vowel sign (instead, the consonant ঙ uṅô is used before vowels).

Burmese

In the Burmese script, the anusvara (အောက်မြစ် auk myit (့) IPA: [aʊʔ mjɪʔ]) is represented as a dot under a nasalised final to indicate a creaky tone (with a shortened vowel).

Burmese uses aalso a dot above a letter to indicate the /-ɴ/ nasalized ending (called "Myanmar Sign Anusvara" in Unicode), called သေးသေးတင် thay thay tin (IPA: [θé ðé tɪ̀ɰ̃]) (ံ)

Sinhala

In the Sinhala script, the anusvara is not a nonspacing combining mark but a spacing combining mark. It has a circular shape and follows its base letter ( ං). It is called binduva in Sinhala, which means "dot". The anusvara represents /ŋ/ at the end of a syllable. It is used in the name of the Sinhala language සිංහල [ˈsiŋɦələ]. It has merged in pronunciation with the letter ඞ ṅa in Sinhala.

Telugu

The Telugu script has full-zero (sunna) ం , half-zero (arasunna) and visarga to convey various shades of nasal sounds. Anusvara is represented as a circle shape after a letter: క - ka and కం - kam.

Thai

The equivalent of the anusvara in the Thai alphabet is the nikkhahit (◌ํ). Used in rendering Sanskrit and Pali texts, it is written as an open circle above the consonant (for example อํ). Its pronunciation depends on the following sound: if it is a consonant, the nikkhahit is pronounced as a homorganic nasal, and if it is at the end of a word, it is pronounced as a voiced velar nasal/ŋ/.

Anunasika

Anunasika (anunāsika) is a form of vowel nasalization, often represented by an anusvara. It is a form of open-mouthed nasalization, akin to the nasalization of vowels followed by "n" or "m" in Parisian French. When "n" or "m" follows a vowel, the "n" or "m" becomes silent and causes the preceding vowel to become nasal (it is pronounced with the soft palate extended downward to allow part or all of the air to leave through the nostrils). Anunasika is sometimes called a subdot because of its IAST representation.

In Devanagari and related scripts, the anunasika is represented by the chandrabindu diacritic (example: माँ).

In Burmese, the anunasika, called သေးသေးတင် (IPA: [θé ðé tɪ̀ɰ̃]) and represented as ⟨ံ⟩, creates the /-ɰ̃/ nasalized ending when it is attached as a dot above a letter. The anunasika represents the -m final in Pali.

Unicode

Unicode encodes anusvara and anusvara-like characters for a variety of scripts:

See also

• Chandrabindu
• Tilde
• Ogonek

Notes

1. Ohala (1983, p. 90) lists five more such words: dhaṃs- "to sink", phaṃs- "to be stuck", haṃslī "a necklace", haṃsiyā "a sickle" and haṃsī "laughter".

References

1. ^ Allen 1953, p. 40.
2. Whitney, cited in Emeneau 1946, p. 91
3. Varma 1961, pp. 148–55.
4. Emeneau 1946, p. 91.
5. Cardona 2013.
6. Allen 1953, p. 41.
7. William Bright, "The Devanagari Script", in Daniels & Bright, The World's Writing Systems, OUP, 1996.
8. The following rules are from Ohala (1983, pp. 87–90)
9. See an example in Pandey, Anshuman (April 25, 2017). "Proposal to encode a nasal character in Vedic Extensions" (PDF). Unicode. L2/17-117R. Archived (PDF) from the original on Oct 8, 2022.
10. Chenchiah, P.; Rao, Raja Bhujanga (1988). A History of Telugu Literature. Asian Educational Services. p. 18. ISBN 81-206-0313-3.
11. A, Srinidhi; A, Sridatta (2016-10-20). "L2/16-285: Proposal to encode the Telugu Sign Combining Anusvara Above" (PDF). Unicode.

Bibliography

• Allen, W.S. (1953), Phonetics in ancient India, OUP
• Cardona, George (2013). "Developments of nasals in early Indo-Aryan : anunāsika and anusvāra". Tokyo University Linguistic Papers. 33: 3–81. ISSN 1345-8663.
• Emeneau, M. B. (1946). "The Nasal Phonemes of Sanskrit". Language. 22 (2): 86–93. doi:10.2307/410341. JSTOR 410341.
• Ohala, Manjari (1983), Aspects of Hindi Phonology, Motilal Banarsidass, ISBN 0-89581-670-9
• Varma, Siddheshwar (1961) . Critical studies in the phonetic observations of Indian grammarians. James G. Forlong Fund. Delhi: Munshi Ram Manohar Lal.

• Brahmic diacritics
• Sanskrit