Phonological history of English vowels

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The phonological history of the English vowels involves a large number of diachronic sound changes, especially involving phonemic splits and mergers.

Contents

[edit] Tense-lax neutralization

Tense-lax neutralization refers to a neutralization, in a particular phonological context in a particular language, of the normal distinction between tense and lax vowels.

In most varieties of English, this occurs in particular before /ŋ/ and (in rhotic dialects) before coda /r/ (that is, /r/ followed by a consonant or at the end of a word); it also occurs, to a lesser extent, before tautosyllabic /ʃ/ and /g/. Some examples of neutralization of /ɛ/ to /eɪ/ before /ɡ/ are beg, egg, Greg, keg, leg and peg's coming to rhyme with Craig, Hague, plague and vague.

Some varieties (including most American English dialects) have significant vocalic neutralization before intervocalic /r/, as well. See English-language vowel changes before historic r.

[edit] Monophthongs

[edit] Low front vowels

[edit] Low back vowels

[edit] High back vowels

the

[edit] High front vowels

[edit] Diphthongs

[edit] English-language vowel changes before historic r

[edit] Mergers before intervocalic r

Mergers before intervocalic r are quite widespread in North American English.

[edit] Mergers before historic coda r

Various mergers before historic coda r are very common in English dialects.

[edit] English-language vowel changes before historic l

  • The salary-celery merger is a conditioned merger of /æ/ and /e/ before /l/ occurring in New Zealand and Victorian English.
  • The fill-feel merger is a conditioned merger of /ɪ/ and /iː/ before /l/ occurring in some dialects of American English.
  • The fell-fail merger is a conditioned merger of /ɛ/ and /eɪ/ before /l/ occurring in some varieties of Southern American English.
  • The full-fool merger is a conditioned merger of /ʊ/ and /uː/ before /l/ mainly occurring the North Midland accent of American English.
  • Four other conditioned mergers before /l/ which require more study have been mentioned in the literature and are as follows.
    • /ʊl/ and /ol/ (bull vs. bowl)
    • /ʌl/ and /ɔl/ (hull vs. hall)
    • /ʊl/ and /ʌl/ (bull vs. hull)
    • /ʌl/ and /ol/ (hull vs. hole)

[edit] Pre-stressed environment schwa deletion

Pre-stressed environment schwa deletion is the deletion of /ə/ from the initial syllable of words when it is preceded by at least one consonant and followed by a stressed syllable occurring in some varieties of English resulting in pronunciations such as:

support - /spɔːrt/

surprise - /spraɪz/

police - /pliːs/

below - /bloʊ/

garage - /grɑːdʒ/

semester - /smɛstɚ/

tonight - /tnaɪt/

surround - /sraʊnd/

supposed - /spoːz(d)/

[edit] Mere-mirror merger

The mere-mirror merger is a process that occurs for some speakers in the Northern United States where /ɚ/ disappears after intervocalic /r/ in a monomorphemic word. As a result, the following words can become homophonous:

  • mirror, mere
  • terror, tear
  • error, air
  • horror, whore

[edit] See also