Linguistics 105 * Words and Sounds
Lecture Number Six-b
Types of Phonological Change

 


  1. Assimilation
    Assimilation is the copying of a feature from one segment to another in such a way as to make the copying segment more like the copied one.

    Nasal Assimilation

    /bÀn/ ¡ [bÀn]  
    /bÀnk/ ¡ [bÀük] ¡ [bÀ‚ük]

    /rønk/ ¡

    [røük] ¡ [rø‚ük]

    Assimilation to Place of Articulation

    /wød-Ê/ ¡ [wøt…Ê]
    /hajt-Ê/ ¡ [hajt…Ê]

    Voicing
    Voicing is the addition of voicing ([-Voiced] ¡ {+voiced]) to a consonant, usually because of surrounding vowels or an adjacent vowel or sonorant.

    Dutch Phonemic Allphonic Gloss
    afkomen /afkomÏ/ [afkomÏ] come down
    aftrekken /aftrekÏ/ [aftrekÏ] deduct
    afbelen /afbelÏ/ [avbelÏ] ring off
    afdekken /afdekÏ/ [avdekÏ] cover over

    Devoicing
    Devoicing is the loss of voicing (voicedness) usually caused by a voiceless contiguous consonant or word-final position.

    English (/l/ after voiceless consonants)

    /pliz/ ¡ [pl€iz]
    /kløk/ ¡ [kl€øk]
    /sliz/ ¡ [sl€iz]

    German (at the end of words)

    /hund/ ¡ [hunt] Hund 'dog'
    /mag/ ¡ [mak] mag 'like'
    /rand/ ¡ [rant] Rand 'rim'

  2. Dissimilation
    Sometimes a segment is made dissimilar to a contiguous segment because the language does not like identical or similar sounds next to each other.

    English dialect:
    chimley
    /føfÊ/ ¡ [føft]

  3. Deletion

    Syncope
    Syncope is the deletion of an unaccented vowel or reduced consonant from the middle of a word.

    US English: schwa after [r] (if preceded by a consonant)
    /bÏliv/ ¡ [bliv] believe
    /sÏpoz/ ¡ [spoz] suppose
    /mÏlan/ ¡ [mlan] Milan
    /srê‚ndr/ ¡ [srê‚ndr] surrender
    /pÏlis/ ¡ [plis] police
    /pÏred/ ¡ [pred] parade

    If preceded by a vowel, the vowel is deleted:
    veteran : Northeast [vêtrÏn], Southwest [vêÊtrn]
    different: Northeast [døfrÏnt], Southwest [døfrnt]
    ignorant: Northeast [øgnrÏnt], Southwest [øgnrnt]

    US English: [t] after [n]
    /øntÏrÏpt/ ¡ [ønÏrÏpt]
    /øntÏrÀkt/ ¡ [ønÏrÀk]
    /øntÏrfir/ ¡ [ønÏrfir]
    Unless followed by an /s/:
    /prønts/ ¡ [prønts]

    Other examples:
    British: /mêdÏsøn/ ¡ [mêdsøn]
    laboratory: /lÀborÏtori/ ¡ [lÀborÏt|ri] (British) : US [lÀbrÏtori]
    secretary: [sêkrÏtêri] ¡ [sêkrêt|ri]

    Apocope
    Apocope is the deletion of an unaccented vowel at the end of a word.

    French
    longe 'long' [l³ü] (from [l³üÏ])
    verte 'green' [vert] (from [vertÏ)
    haute 'high' [ot] (from [otÏ])

  4. Epenthesis
    Epenthesis is the insertion of a vowel, usually between consonants that are not allowed to stand together by the phonotactic rules, rules which determine the possible sequences of sounds in a language.

    English borrowings in Japanese
    strike : [suturaiku]
    club : [kurabu]
    necktie : nekutai

  5. Metathesis
    Metathesis is the switching of positions of two adjacent segments. Liquid metathesis is probably the most common form. It involves the exchange of places of a liquid and a following or preceding vowel.

    English
    /Àsk/ ¡ [Àks]

    Liquid Metathesis (Historical evidence)
    English gard-en : Old Slavic grad 'city'
    German Berg 'mountain' : Old Slavic breg (bank, shore)
    cold [kold] : Old Slavic xlad 'cold'

  6. Haplology
    Haplology is the deletion of a segment or syllable that is identical or similar to an adjacent syllable or segment in that syllable.

    English
    /prabÏblø/ ¡ [prablø]
    library: /lajbrêri/ ¡ [lajbrêri] British : US [lajbêri] February: /fêbjÏwerø] (US) : [fêbrÏri] (British)

  7. Raising (Lowering)
    Vowels may be lowered one level or raised one level as a result of neighboring vowels (or historical change).

    'Canadian' Raising: diphthongs go to schwa before voiceless consonants
    /bajk/ ¡ [bÏjk]
    /lajt/ ¡ [lÏjt]
    /kajt/ ¡ [kÏjt

    In Canada and Norfolk, Virginia
    /haws/ ¡ [hÏws]
    /awt/ ¡ [Ïwt]
    /maws/ ¡ [mÏws]

    US English (Brooklyn, etc.)
    /sÀt/ ¡ [sêt]
    /bÀd/ ¡ [bêd]
    /rÀt/ ¡ [rêt]

    New Zealand English
    /bêd/ ¡ [bød]
    /sêd/ ¡ [sød]
    /lêt/ ¡ [løt]

  8. Unrounding
    Vowels may be rounded or unrounded by synchronic or diachronic phonological rules.

    US English (New England, etc.)
    /wØk/ ¡ [wak]
    /kØf/ ¡ [kaf]
    /bØt/ ¡ [bat]
    /dØg/ ¡ [dag]

  9. Diphthongization

    /wØk/ ¡ [wawk]
    /kØf/ ¡ [kawf]
    /bØt/ ¡ [bawt]
    /dØg/ ¡ [dawg]

  10. Palatalization Palatalization is the movement of the place of articulation toward the palate either from the alveolar ridge or from the velum. This process is usually triggered by a following jod [j] or front vowel [i], [e].

    1. English palatalization before [j]:
      • Did you : [dø”Ï]
      • hit you : [hø“Ï]
      • [pøktjur] ¡ [pøk“r]
    2. Italian
      • adagio [ada”o]
      • (buon) giorno [”orno]
      • gelato [”êlato]
      • Boccaccio [boka“o]
      • but caro [karo], cosa [kosa], gamba [gamba]
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