Repartitioning

We present a new phenomenon in inflectional morphology, ‘repartitioning’, based on data from Soq (Trans New Guinea). In repartitioning, the semantic boundary between two sets of morphological forms is redrawn in a single domain; one feature value takes over part, but not all, of the meaning of the other. In Soq the boundary is redrawn between the yesterday past tense and the hodiernal; the domain is the lexeme s-‘stay’. For this one verb, the yesterday past takes over most of the range of the hodiernal, while the morphological forms remain regular. In clause chains the repartitioned verb surprisingly shows no syntactic effects. We demonstrate key differences from known phenomena, notably syncretism and overdifferentiation. Repartitioning is indeed new. It can be modeled in a theory based on default inheritance, but poses problems for other approaches. Finally, we present a typology of featural mismatches that situates Soq relative to known phenomena.