Oko language

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Native toNigeria
RegionKogi State
Native speakers
40,000 (2006)[1]
  • Atlantic–Congo
    • Volta–Niger
      • noi
        • Oko
  • Oko
  • Eni
  • Osayen
Language codes
ISO 639-3oks

Oko (ɔ̀kɔ́), also known as Ogori-Magongo and Oko-Eni-Osayin, is a dialect cluster spoken in Nigeria. It appears to form a branch of the "Nupe–Oko–Idoma" (noi) group of Niger–Congo languages. Most Oko speakers also speak Yoruba as a second language. The language is spoken in and around the towns of Ogori and Magongo in southwestern Kogi State, close to the Ondo and Edo state borders.


According to Ethnologue, Oko is spoken in:


Oko is a dialect cluster consisting of (Ethnologue):

  • Oko (Ogori, Uku)
  • Osayin(Magongo, Osanyin)
  • Eni

Below is a list of Ọkọ–Eni–Ọsayin language cluster names, populations, and locations from Blench (2019).[3]

Language Alternate spellings Other names (location-based) Speakers
Ọkọ Uku, Oko Ogori (town name), Gori 4,000 (1970??)
Ọsayin Osayin, Ọsayin Magongo (town name) 3,000 (1970??)
Eni 3,000 (1970??)



Bilabial Labiodental Alveolar Palato-alveolar Palatal Velar Labio-velar Glottal
Nasal m n
Voiceless plosive p t k k͡p
Voiced plosive b d g ɡ͡b
Voiceless fricative f s h
Voiced fricative z
Voiceless affricate t͡ʃ
Voiced affricate d͡ʒ
Trill r
Approximant l j w


Front Central Back
Close i u
Close-mid e o
Open-mid ɛ ɔ
Low a

Each vowel also has a nasal equivalent.[4]

See also[edit]


  1. ^ Oko at Ethnologue (18th ed., 2015)
  2. ^ Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Oko-Eni-Osayen". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
  3. ^ Blench, Roger (2019). An Atlas of Nigerian Languages (4th ed.). Cambridge: Kay Williamson Educational Foundation.
  4. ^ Atoyebi, Joseph Dele. 2009. A Reference Grammar of Oko. Umuneke-Okpala, Nigeria: Leipzig University Press.