Postlabial raising and paradigmatic leveling in A’ingae: A diachronic study from the field
Abstract
This paper discusses and analyzes the variation between ai and ɨi in A’ingae(or Cofán, an Amazonian isolate, ISO 639-3: con) by comparing the data reported in Borman’s (1976) dictionary with contemporary productions. In Borman (1976), ai does not generally appear after labial consonants; the distribution of ɨi is not restricted. In some modern productions, postlabial ai is allowed when the diphthong crosses a morpheme boundary (a + i). I propose that Borman’s (1976) distribution of ai and ɨi is a consequence of a diachronic change of ai to ɨi after labial consonants (* ai > ɨi /B _). The contemporary distribution reflects paradigm leveling and contact-induced replacement: Borman’s (1976) ɨi corresponds to contemporary ai if a is present in another related form. In novel productively-formed words, the availability of postlabial raising is speaker-specific. The proposed sound change of postlabial raising (*ai > ɨi /B _) is unusual and lacks obvious phonetic motivation. I speculate that postlabial raising reflects postlabial rounding (*ai > * ui /B _) opacified by subsequent unconditioned unrounding and centralizing of the back round vowel (* u > ɨ).
Keywords
A’ingae; Cofán; postlabial raising; paradigmatic leveling; sound change; internal reconstruction; Amazon; Andes; telescoping; unnatural rule; fieldwork; isolate; variation
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PDFDOI: https://doi.org/10.3765/plsa.v8i1.5428
Copyright (c) 2023 Maksymilian Dąbkowski

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