Derivational analysis of vowel deletion
The restriction on distribution (*V#V) defines a position where a vowel cannot occur. As in a neutralization distribution, the underlying representation of an alternating morpheme must include the restricted class of sounds. So in this case, the underlying representation must include the vowel: /kuβóna, umŋâ:na, umu:nɦu, aβa:nɦu, umugaβo, iɟitaβo, inɦéβe, iŋguɾuβe/. To derive the consonant-final alternant, then, we need to posit a rule that deletes the word-final vowel before a vowel:
V → ø / ___ # V
Underlying representation | /umu:nɦu muníni/ | /umu:nɦu aku:ndá/ |
Vowel deletion | ----- | /umu:nɦ aku:ndá/ |
Surface representation | [umu:nɦumuníni] | [umu:nɦaku:ndá] |