Proto-Bantu *k and *g in the Mbam Languages: A Problem in Classification

The Bantu Mbam languages of Cameroun appear at first glance as a very coherent unit, in spite of having been put by Guthrie (1953) in two different groups (A40 and A60). Indeed they differ in their treatment of the two Proto-Bantu velar stops *k and *g, the latter being generally quite diagnostic in differentiating among larger Bantu units. This contribution will examine in detail the reflexes of the two proto-sounds, examine possible explanations and tentatively suggest directions for further research.