Missing elsewhere: Domain extension in contextual allomorphy

Abstract

Much work in Distributed Morphology (Embick 2010, 2015, Bobaljik 2012, Harley, Tubino, and Haugen 2017, Bobaljik and Harley to appear) holds that morphosyntactically conditioned contextual allomorphy, including suppletion, can only work in a very local fashion: Two morphemes must be linearly or structurally adjacent for one to determine the morphological exponence of the other. Recently, however, the existence of nonlocal patterns has come into focus, with growing evidence that nonlocal allomorphy is an attested empirical option.1 In this squib, I discuss the allomorphy of verb stems in the Nakh-Daghestanian language Aqusha Dargwa and argue that the choice between allomorphs in morphological causatives in that language is determined nonlocally by tense-aspect-mood (TAM), proposing that Vocabulary Insertion (VI) can be exempt from locality requirements under certain conditions.