The (Western) Omo–Tana or Arboroid languages belong to the Afro-Asiatic family and are spoken in Ethiopia and Kenya.
The languages are: Arbore Daasanach El Molo Yaaku The first three have long been recognized as related; Bender (2020) adds Yaaku, whose classification had been obscure.Bender, M. Lionel. (2020). Cushitic Lexicon and Phonology. ed. Grover Hudson. (Schriften zur Afrikanistik / Research in African Studies, 28). Berlin: Peter Lang. The El Molo language of Kenya is nearly extinct.Raymond G. Gordon Jr., ed. 2005. Ethnologue: Languages of the World. 15th edition. Dallas: Summer Institute of Linguistics.
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