Zizilivakan, also known as Fali of Jilbu and Ulan Mazhilvən, is a Chadic language spoken in Cameroon in Far North Province and neighboring Nigeria. It is one of several in the area that go by the name Fali.
Jalaa, also known as Cèntûm, Centúúm or Cen Tuum, is an extinct language of northeastern Nigeria, of uncertain origins, apparently a language isolate. The Jalabe speak the Bwilim dialect of the Dikaka language. It is possible that some remembered words have been retained for religious ceremonies, but in 1992 only a few elders remember words that their parents had used, and by 2010 there may not even remain any such rememberers.
The Biu–Mandara or Central Chadic languages of the Afro-Asiatic family are spoken in Nigeria, Chad and Cameroon.
The Adamawa languages are a putative family of 80–90 languages scattered across the Adamawa Plateau in Central Africa, in northern Cameroon, north-western Central African Republic, southern Chad, and eastern Nigeria, spoken altogether by only one and a half million people. Joseph Greenberg classified them as one branch of the Adamawa–Ubangi family of Niger–Congo languages. They are among the least studied languages in Africa, and include many endangered languages; by far the largest is Mumuye, with 400,000 speakers. A couple of unclassified languages—notably Laal and Jalaa—are found along the fringes of the Adamawa area.
Ga is a Biu-Mandara language spoken by about 43,000 people in the Gombi Local Government Area in Adamawa state of Nigeria. Many speakers live across the length and breadth of Nigeria. It has three dialects, Ga'anda, Gabun and Boga; Blench (2006) classifies Gabun is a separate language.
Paʼa, also known as Afa (Afawa) or Fucaka (autonym), is an Afro-Asiatic language spoken in Bauchi State, Nigeria.
Kamwe is a Chadic language native to Adamawa State and Borno State of Nigeria as well as to North-Western Cameroon.
Bata (Gbwata) is an Afro-Asiatic language spoken in Nigeria in Adamawa State in the Numan, Song, Fufore and Jimeta gire Yola maiha Demsa lamorde LGAs, and in Cameroon in North Province along the border with Nigeria. Dialects are Demsa, Garoua, Jirai, Kobotachi, Malabu, Ndeewe, Ribaw, Wadi, and Zumu (Jimo). It is often considered the same language as Bacama.
Jimi (Djimi), also known as Jimjimən and 'Um Falin, is a Chadic language spoken in Cameroon in Far North Province on the Nigerian border in and around Bourrha. Dialects are Djimi, Jimo, Malabu, Wadi, and Zumo.
Ebira is a Niger-Congo language. It is spoken by around 2 million people in North central Nigeria. It is the most divergent Nupoid language.
Fali comprises two languages spoken in northern Cameroon. Included in Greenberg's Adamawa languages, it was excluded from that family by Boyd (1989). Roger Blench suspects it may represent one of the earlier lineages to have branched off the Atlantic–Congo stock.
The Basa language, disambiguated as Basa-Benue, and also called Abacha, Abatsa, ru-Basa, Rubassa, is a Kainji language spoken in central Nigeria, in the vicinity of Bassa, Ankpa, Nasarawa, Gurara, Kwali and Makurdi. Blench (2008) notes that Basa-Makurdi, Basa-Gurara and Basa-Kwali are separate varieties from Basa-Kwomu or Basa-Komo of Bassa, Ankpa and Nasarawa Local Government Areas and other Bassa speakers are Bassa Nge (also known as Bassa Nupe.
The Koma language is a language cluster belonging to the Duru branch of Savannas languages of Cameroon. Blench (2004) includes three varieties separated in Ethnologue, Koma Ndera, Gɨmne, and Gɨmnɨme; within Koma Ndera, speakers of the marginal dialects, Gomnome and Ndera, can scarcely understand one another, though both understand the central dialect, Gomme.
Berom or Birom is the most widely spoken Plateau language in Nigeria. The language is locally numerically important and is consistently spoken by Berom of all ages in rural areas. However, the Berom are shifting to Hausa in cities. The small Cen and Nincut dialects may be separate languages. Approximately 1 million (2010) people speak in this language.
Hyam is a regionally important linguistic cluster of Plateau languages in Nigeria. Hyam of Nok is the prestige dialect. Writing the sociolinguistics of Hyam, Blench treats Sait, and Dzar as distinct varieties, and notes that Yat and Ankung may be viewed as separate languages, however, Hayab (2016) presents a differing opinion arguing that it is Ankung, a language called Iduya, that is not mutually intelligible to Hyam. Meanwhile, Hyam, which is spoken by the Ham people of Nigeria, popularly known as 'Jaba' in a recent study by Philip Hayab, a native of the area and a linguist who carried out in-depth research into the language, reveals that 'Jaba' has a Hausa etymology and is derogatory and should be discarded.
Adara, is a language spoken by Adara people of Kaduna state and Niger state of Nigeria. The name Adara is also used to refer to the ethnic group.
Koro Wachi, natively Tinɔr and Myamya, is a dialect cluster of Plateau languages spoken to the north of Keffi in Nasarawa State Kagarko Local Government Area and Jema'a Local Government of southern Kaduna State in central Nigeria. Koro Wachi forms part of a larger cultural grouping with the Ashe.
The Jagham language, Ejagham, also known as Ekoi, is an Ekoid language of Nigeria and Cameroon spoken by the Ekoi people. The E- in Ejagham represents the class prefix for "language", analogous to the Bantu ki- in KiSwahili
Vemgo-Mabas is an Afro-Asiatic language of Cameroon and Nigeria. Dialects are Vemgo, Mabas. Blench (2006) considers these to be separate languages. Ethnologue lists a third dialect, Visik in Nigeria, which is not well attested; Blench suspects it may be a dialect of Lamang instead.
Kirya-Konzəl is a recently documented Chadic language of Nigeria, though it was first attested in 1931. The varieties, Fali of Kirya (Kirya) and Fali of Mijilu (Konzəl), are very close.
