LIN100Y1 Lecture Notes - Lecture 8: Voiced Alveolar Fricative, Allomorph, Sibilant
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Required readings: o"grady & archibald, chapter 4, section 4. 6: allomorphy. Allomorphs (or alternants) are variant forms of a morpheme (just as allophones are variant forms of a phoneme). [ ] and [ n] are allomorphs of the same morpheme, the indefinite article. This morpheme alternates between [ ] and [ n] ([ ] ~ [ n]). The plural suffix alternates between [-s], [-z], and [- z]. These are allomorphs of the same plural morpheme. We"ll go to the park on wednesday. We went to the park yesterday. go=go. present went=go. past. ____________________________________ foot foot = foot. sg. feet feet = foot. pl. We assume that allomorphs whose relation is predictable by phonology are derived from a single underlying representation (ur) by phonological rules. That is, there are two phonetic forms, but one underlying form (compare to phonemes vs. allophones): pr [p m t]~[p m -], ur /p m t-, ur /p m t-j n/ (a phonological rule)
