Classification
Omotic is generally considered the most divergent branch of the Afroasiatic languages. Greenberg (1963) had classified it as the Western branch of Cushitic. Fleming (1969) argued that it should instead be classified as an independent branch of Afroasiatic, a view which Bender (1971) established to most linguists' satisfaction, though a few linguists maintain the West Cushitic position, or that only South Omotic forms a separate branch, with North Omotic remaining part of Cushitic. Blench (2006) notes that Omotic shares honey-related vocabulary with the rest of Afroasiatic, but not cattle-related vocabulary, suggesting that the split occurred before the advent of pastoralism. A few scholars have raised doubts that the Omotic languages are part of the Afroasiatic language family at all, and Theil (2006) proposes that Omotic be treated as an independent family. However, the general consensus, based primarily on morphological evidence, is that membership in Afroasiatic is well established.
Read more about this topic: Omotic Languages