Yemsa is the language of the Yem people of the former Kingdom of Yamma, known as Kingdom of Janjero to the Amhara. It is a member of the Omotic group of languages, most closely related to Kafa. It is distinctive in having different systems of vocabulary depending on social status, rather like Japanese and Javanese. The estimated number of speakers varies wildly from about 1000 (Bender,1976) to half a million (Aklilu, 1993).Fuga dialect is distinct enough to perhaps be a different language.