Middle voice in Bantu: in- and detransitivizing morphology in Kagulu

This paper explores the middle voice in Kagulu, a Bantu language of Tanzania. Although not traditionally recognized in Bantu languages, recent research has asserted that middle voice is attested in some Bantu languages. We propose that of eight affixes that might be considered middle markers, Kagulu has two affixes that are part of the middle voice system, each one coding two different detransitivizing voices. We argue that, from a diachronic viewpoint, the underdeveloped voice syncretism of Kagulu's middle markers is the result of competing morphology and minimal functional innovations towards voice syncretism in the derivational system of Kagulu.