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Alternation (linguistics)

Alternation (linguistics)Description : In linguistics, an alternation is the phenomenon of a phoneme or morpheme exhibiting variation in its phonological realization. Each of the various realizations is called an alternant. The variation may be conditioned by the phonological, morphological, and/or syntactic environment in which the morpheme finds itself.Alternations provide linguists with data that allow them to determine the allophones and allomorphs of a language's phonemes and morphemes and to develop analyses determining the ... Page:a

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Sound change and alternation
Metathesis
  • Quantitative metathesis
Lenition
  • Consonant gradation
  • Consonant voicing and devoicing
  • Assibilation
  • L-vocalization
  • Debuccalization
Fortition
Epenthesis
  • Prothesis
  • Paragoge
  • Unpacking
  • Vowel breaking
Elision
  • Apheresis
  • Syncope
  • Apocope
  • Haplology
  • Cluster reduction
Cheshirization
  • Compensatory lengthening
  • Nasalization
  • Tonogenesis
  • Floating tone
Assimilation
  • Fusion
  • Coarticulation
  • Palatalization
  • Velarization
  • Labialization
  • Final devoicing
  • Metaphony (vowel harmony, umlaut)
  • Consonant harmony
Dissimilation
Sandhi
  • Liaison, linking R
  • Consonant mutation
  • Tone sandhi
  • Hiatus
Synalepha 
  • Elision
  • Crasis
  • Synaeresis and diaeresis
  • Synizesis
Other types
  • Clipping
  • Fronting
  • Raising
  • Iotacism
  • Lambdacism
  • Relaxed pronunciation
  • Rhotacism
  • Rhinoglottophilia
  • Sulcalization
  • Shm-reduplication
  • v
  • t
  • e

In linguistics, an alternation is the phenomenon of a phoneme or morpheme exhibiting variation in its phonological realization. Each of the various realizations is called an alternant. The variation may be conditioned by the phonological, morphological, and/or syntactic environment in which the morpheme finds itself.

Alternations provide linguists with data that allow them to determine the allophones and allomorphs of a language's phonemes and morphemes and to develop analyses determining the distribution of those allophones and allomorphs.

Phonologically conditioned alternation

See also: Allomorph

An example of a phonologically conditioned alternation is the English plural marker commonly spelled s or es. This morpheme is pronounced /s/, /z/, or /ᵻz/, depending on the nature of the preceding sound.

  1. If the preceding sound is a sibilant consonant (one of /s/, /z/, /ʃ/, /ʒ/, /tʃ/, or /dʒ/), the plural marker takes the form /ᵻz/. Examples:
    • mass /ˈmæs/, plural masses /ˈmæsᵻz/
    • fez /ˈfɛz/, plural fezzes /ˈfɛzᵻz/
    • mesh /ˈmɛʃ/, plural meshes /ˈmɛʃᵻz/
    • mirage /mᵻˈrɑːʒ/, plural mirages /mᵻˈrɑːʒᵻz/
    • church /ˈtʃɜːrtʃ/, plural churches /ˈtʃɜːrtʃᵻz/
    • bridge /ˈbrɪdʒ/, plural bridges /ˈbrɪdʒᵻz/
  2. Otherwise, if the preceding sound is voiceless, the plural marker takes the likewise voiceless form /s/. Examples:
    • mop /ˈmɒp/, plural mops /ˈmɒps/
    • mat /ˈmæt/, plural mats /ˈmæts/
    • pack /ˈpæk/, plural packs /ˈpæks/
    • cough /ˈkɒf/, plural coughs /ˈkɒfs/
    • myth /ˈmɪθ/, plural myths /ˈmɪθs/
  3. Otherwise, the preceding sound is voiced, and the plural marker takes the likewise voiced form /z/.
    • dog /ˈdɒɡ/, plural dogs /ˈdɒɡz/
    • glove /ˈɡlʌv/, plural gloves /ˈɡlʌvz/
    • ram /ˈræm/, plural rams /ˈræmz/
    • doll /ˈdɒl/, plural dolls /ˈdɒlz/
    • toe /ˈtoʊ/, plural toes /ˈtoʊz/

Alternation related to meaning

Main article: Apophony

Morphologically conditioned alternation

French has an example of morphologically conditioned alternation. The feminine form of many adjectives ends in a consonant sound that is missing in the masculine form. In spelling, the feminine ends in a silent e, while the masculine ends in a silent consonant letter:

  • masculine petit [pəti], feminine petite [pətit] "small"
  • masculine grand [ɡʁɑ̃], feminine grande [ɡʁɑ̃d] "tall"
  • masculine gros [ɡʁo], feminine grosse [ɡʁos] "big"
  • masculine joyeux [ʒwajø], feminine joyeuse [ʒwajøz] "merry"
  • masculine franc [fʁɑ̃], feminine franche [fʁɑ̃ʃ] "sincere"
  • masculine bon [bɔ̃], feminine bonne [bɔn] "good"

Syntactically conditioned alternation

Syntactically conditioned alternations can be found in the Insular Celtic languages, where words undergo various initial consonant mutations depending on their syntactic position. For example, in Irish, an adjective undergoes lenition after a feminine singular noun:

  • unmutated mór [oːɾˠ] "big", mutated in bean mhór [bʲan woːɾˠ] "a big woman"

In Welsh, a noun undergoes soft mutation when it is the direct object of a finite verb:

  • unmutated beic [bəik] "bike", mutated in Prynodd y ddynes feic [ˈprənoð ə ˈðənɛs vəik] "The woman bought a bike"
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