Mmen language
Mmen (Bafmeng) is a Grassfields Bantu language of Cameroon.

As a Centre Ring language of Narrow Grassfields, a subdivision of Wide Grassfields within the Southern Bantoid languages, Mmen is part of a cluster including six other languages i.e. Babanki, Bum, Kom, Kuk, Kung and Oku (Lewis 2009).

Etymology 
The name Mmen ([mɛn]) comes from the verb sé mwɛ̀yn [sémɣɛ̀yn] ‘to open up thick bush-covered land’ and is used by the speakers referring to both their language and their land. 

Ethnologue (Lewis 2009) and ALCAM, Atlas Linguistique du Cameroon (Dieu and Renaud 1983) use the name and spelling Mmen.

Bafumen is the name of the village where the largest number of speakers is found i.e. 30 000 (Troyer, et al. 1995:8) and the name adopted by German colonizers for the area and formerly used for the language. Other villages where Mmen is spoken are Cha’, Yemgeh, Nyos, Ipalim among others.

Phonology

Consonants
Mmen has 27 phonemic consonants.

Vowels

Monophthongs
Mmen has 9 phonemic monophthongs.

Diphthongs
Mmen also has six phonemic diphthongs, all ending in .

Tone
Mmen has 9 phonemic tones. There are three level tones (high, mid, and low) and six contour tones (high-low, high-mid, mid-low, mid-high, low-mid, and low-falling).

References

Bibliography

Ring languages
Languages of Cameroon