The Dahu-Kemba languages are spoken today across much of North-West Aheku, including on Mohai, though they originated further east. There are, or have been, twenty-four Dahu-Kemba languages of which fourteen are extant.
Proto-Dahu-Kemba was spoken by the Proto-Dahu-Kemba people who lived in North-East Aheku until Omun Hemwan-186X (what we would call 1500 BC). In OH -186X the PDK people began to migrate west. They established two new colonies, one in what is now Heiko and one in modern Pekau. The dialects of the two colonies became separate Dahu and Kemba languages from around OH -1722 (i.e. 1300 BC).
The Dahu language had a strong sub-stratum influence from local languages in the Macro-Senduri family. For reasons which are not clear, Kemba had no influence from pre-existing local languages. It is therefore considered closer to PDK.