Cipu (Cicipu), or Western Acipa, is a Benue–Congo language spoken by about 20,000 people in northwest Nigeria. The people call themselves Acipu.
Like most Benue–Congo languages, Cipu has a complex noun class system. It has a fairly complex phonology with lexical and grammatical tone, vowel harmony, and nasalisation.
Cipu speakers virtually all speak the lingua franca Hausa. Many also speak other nearby languages. (Wikipedia)
See also The Cicipu language