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Prenasalized consonants are phonetic sequences of a nasal and an obstruent (or a non-nasal sonorant) that behave phonologically like single consonants. The reasons for considering these sequences to be single consonants is in their behavior, not in their actual composition. However, there may also be phonetic correlates which distinguish prenasalized consonants from clusters involving nasal consonants. Because of the additional difficulty in both articulation and timing, prenasalized fricatives and sonorants are not as common as prenasalized plosives and the presence of the former implies the latter.
The Bantu languages are famous for their prenasalized stops (the "nt" in "Bantu" is an example), but similar sounds occur across Africa and around the world. Ghana's politician Kwame Nkrumah had a prenasalized stop in his name, as does the capital of Chad, N'Djamena (African prenasalized stops are often written with apostrophes in Latin script transcription although this may sometimes indicate syllabic nasals instead).
In Southern Min languages, such as Teochew, prenasalized stops are also found. The prenasalized stops in the southern Min languages evolved from the nasals of Middle Chinese and thus are historically different from the voiced obstruents found in Wu and Xiang languages.
Prenasalized consonants are widely utilized in Loloish languages of Lolo–Burmese family, such as Yi and Naxi. The following table illustrates the prenasalized consonants in northern Yi.
|Yi Character||Official Pinyin||IPA||Meaning|
The Prenasalized stops also occur in several branches of the Hmong–Mien language family of Southern China and Southeast Asia.
In dialects of northern Japan, standard voiced stops are prenasalized, and voiceless stops are voiced. For example, /itiɡo/ "strawberry" is [it̠͡ɕiɡo] in most of the south, but [id̠͡ʑɨᵑɡo] in much of the north.
The Guaraní language has a set of prenasalized stops which are alternate allophonically with simple nasal continuants; they appear only in words without nasalized vowels.
The Indic languages Sinhala and Dhivehi too have prenasalized stops. The Sinhala alphabet has prenasalized versions of g, ḍ (voiced retroflex plosive), d̪ (voiced dental plosive) and b.
Sri Lankan Malay has been in contact with Sinhala a long time and has also developed prenasalized stops. The spectrograms on the right show the word gaambar with a prenasalized stops and the word sambal with a sequence of nasal+voiced stop, yet not prenasalized. The difference in the length of the [m] part is clearly visible. The nasal in the prenasalized word is much shorter than the nasal in the other word.
This phonetic information is complemented by phonological evidence: The first vowel in gaambar is lengthened, which only happens in open syllables in Sri Lanka Malay. The syllabification of gaambar must be gaa.mbar then, and the syllabification of sambal sam.bal.
An example of the unitary behavior of prenasalized stops is provided by Fijian. In this language, as in many in Melanesia, there is a series of voiceless stops, [p, t, k], and a series of prenasalized stops, [mb, nd, ŋɡ], but there are no simple voiced stops, [b, d, ɡ]. In addition, Fijian allows prenasalized stops at the beginning of a word, but it does not allow other consonant sequences. Thus the prenasalized stops behave like ordinary consonants.
When Tok Pisin is spoken by people in Papua New Guinea who have similar phonologies in their languages, voiced consonants are prenasalized. For example, the preposition bilong (from English belong) is pronounced [mbiloŋ] by many Melanesians. The prenasalization behaves as a phonetic detail of voicing, rather than a separate segment.
Prenasalized stops are also found in Australia. The Eastern Arrernte language has both prenasalized stops and prestopped nasals, but does not have any other word-initial consonant clusters. Compare [mʷarə] "good", [ᵐpʷaɻə] "make", [ᵖmʷaɻə] "coolamon".
- Prestopped nasal consonant
- List of Latin digraphs#M
- Silverman (1995:65)
- Silverman, Daniel (1995), "Optional, conditional, and obligatory prenasalization in Bafanji", Journal of West African Languages 25: 57–62