Mbum proper, or West Mbum, is an Adamawa language of Cameroon spoken by about 51,000 people. Speakers are mostly bilingual in Fulfulde. It is also known as Buna, Mboum, Mboumtiba, and Wuna.The Mbum are considered the original population of the Adamawa Plateau in Cameroon. However, some histories recall that there were a people already in the area when they arrived there centuries ago.