Konongo and Ruwila (or Rwira) constitute a

Bantu language The Bantu languages (English: , Proto-Bantu language, Proto-Bantu: *bantʊ̀), or Ntu languages are a language family of about 600 languages of Central Africa, Central, Southern Africa, Southern, East Africa, Eastern and Southeast Africa, South ...

of central

Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...

that is closely related to

Nyamwezi Nyamwezi may refer to: * Nyamwezi people, of Tanzania * Nyamwezi language Nyamwezi is a major Bantu language of central Tanzania. It forms a dialect continuum A dialect continuum or dialect chain is a series of Variety (linguistics), langu ...

– close enough to sometimes be counted as a dialect of Nyamwezi. Ruwila was until recently quite poorly attested.

References

Northeast Bantu languages Languages of Tanzania {{bantu-lang-stub