Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Leko–Nimbari or Chamba–Mumuye languages are a subgroup of the old Adamawa languages family (G2, G4, G5, G12), provisionally now a branch of the Savanna languages. They are spoken in northern Cameroon and eastern Nigeria.