"The Mbum or Kebi-Benue languages (also known as Lakka in narrower scope) are a group of the Mbum–Day branch of the Adamawa languages, spoken in southern Chad, northwestern Central African Republic, northern Cameroon and eastern Nigeria. Their best-known member is Mbum; other languages in the group include Tupuri and Kare.
They were labeled "G6" in Joseph Greenberg's Adamawa language-family proposal." - (Wikipedia (en) 04.07.2022)
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