Vertical vowel system: Difference between revisions
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** [[Irish language|Irish]] (three degrees for short vowels ''only'') |
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[[Kazakh language|Kazakh]] |
[[Kazakh language|Kazakh]] and [[Mongolian language|Mongolian]] have a vertical vowel system in that backness is not phonemic; however, it is not one-dimensional. Backness has in both languages been reinterpreted as [[advanced tongue root]]; vowels are otherwise distinguished by height, diphthongization, and, in Kazakh, rounding. |
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{{DEFAULTSORT:Vertical Vowel System}} |
{{DEFAULTSORT:Vertical Vowel System}} |
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Legend: unrounded • rounded |
Vertical vowel system refers to a system of vowels in a language which requires just one vowel dimension to phonemically distinguish vowels. Theoretically, rounding, frontness and backness, and vowel height could be used in one-dimensional vowel systems; however, vertical refers specifically to the usage of vowel height as the sole distinguishing feature.
Two different diachronic mechanisms may give rise to a vertical vowel system. In some cases, the front-back distinction may simply be lost when vowels are merged. This has occurred in Wichita, in which an old vowel /u/ (preserved in the related language Pawnee) has merged with /i/. However, the Wichita vowel system is not phonetically vertical, as /a/ is realised as open back, /e/ as open-mid front, and /i/ as close to close-mid front; hence, the feature [± back] is relevant to the phonetics of the language, even though it is not a salient phonological distinction. Similarly, the vowel [o] is heard in Wichita utterances, although this vowel is usually the phonetic result of a contraction of sequences of [short vowel + w + short vowel], a phenomenon also noted in other languages with vertical vowel systems.
More striking is a phenomenon whereby one or more phonological features of vowels are lost and reassigned to the consonants at the syllable periphery, leaving all vowels underspecified for frontness, rounding, or both. This has occurred in Arrernte, in which vowel rounding has been lost and consonantal labialisation gained as a result; famously, in all members of the Northwest Caucasian family, both rounding and frontness have been reassigned to the syllable periphery, the former surfacing as consonantal labialisation, and the latter as palatalisation. This has also occurred in Marshallese. Some argue that the short vowels of Irish have similarly lost their frontness specification, forming a rudimentary vertical system. However, almost all Irish consonants appear in palatalised and non-palatalised forms, so the loss of frontness specification is viewed as a consequence, rather than a cause, of consonant palatalisation. Furthermore, the loss of frontness specification in Irish is limited to the short vowels of the language; the long vowels of Irish retain a front-back distinction. Marshallese also has front-back distinction for its long vowels, but these are phonemically sequences of /CVGVC/ where /G/ is an approximant; for example, rooj "rose" is broadly /rˠɜwɜtʲ/, but more narrowly [rˠʌ͡ɔː͡ɛtʲ].
Zero-dimensional vowel systems (one phonemic vowel only) have been postulated for some Abkhaz dialects, Nuxálk, and for Kabardian; however, it is generally accepted that these analyses are flawed[citation needed].
Vertical vowel systems, invariably contrasting only in vowel height, have been noted for the following languages:
- Northwest Caucasian family
- Caddoan family
- Wichita (three degrees)
- Chadic languages
- Margi (two degrees in native vocabulary)
- Australian Aboriginal languages
- Arrernte (two degrees)
- Austronesian languages
- Marshallese (four, now perhaps three degrees)
- Sepik–Ramu languages
- Goidelic languages
- Irish (three degrees for short vowels only)
Kazakh and Mongolian have a vertical vowel system in that backness is not phonemic; however, it is not one-dimensional. Backness has in both languages been reinterpreted as advanced tongue root; vowels are otherwise distinguished by height, diphthongization, and, in Kazakh, rounding.