Volta–Niger languages

Hypothetical major branch of the Volta-Congo languages

Not to be confused with the Eastern Mande languages, also known as "Niger–Volta".

Volta–Niger

West Benue–Congo or East Kwa
Geographic
distribution| West Africa, from Eastern Ghana to central Nigeria
Linguistic classification| Niger–Congo?

* Atlantic–Congo
* Volta–Congo
* Volta–Niger

Subdivisions|

* Akpes
* Ayere–Ahan
* Gbe
* yeai (= Defoid+)
* noi
* ? Ukaan

Glottolog| None

Map cut-out of Volta-Niger family of languages area, with most of the languages bounded by the Volta river, in modern-day Ghana, and the Niger river, found in modern-day Nigeria

The Volta–Niger family of languages, also known as West Benue–Congo or East Kwa, is one of the branches of the Niger–Congo language family, with perhaps 70 million speakers. Among these are the most important languages of southern Nigeria, Benin, Togo, and southeast Ghana: Yoruba, Igbo, Bini, and Gbe.

These languages have variously been placed within the Kwa or Benue–Congo families, but Williamson & Blench (2000) separate them from both. The boundaries between the various branches of Volta–Niger are rather vague, suggesting diversification of a dialect continuum rather than a clear split of families, which suggest a close origin.

## Branches[edit]

The constituent groups of the Volta–Niger family, along with the most important languages in terms of number of speakers, are as follows (with number of languages for each branch in parentheses):[according to whom?]

Volta–Niger

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Akpes (1)

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Ayere–Ahan (2)

Gbe (21: Fon [2 million], Ewe [3 million], Adja [550,000], Phla–Pherá languages [600,000])

yeai

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Yoruboid (Igala [1 million], Yorùbá [47 million], Ede languages [800,000], Itsekiri [800,000])

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Edoid (27: Edo [2 million], Urhobo [2 million], Isoko [420,000], Esan [300,000], Etsako [270,000])

Akoko (1)

Igboid (7: Igbo [30 million], Ikwerre [3 million])

noi

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Nupoid (12: Ebira [1 million], Nupe [1 million])

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Oko (1)

Idomoid (9: Idoma [600,000])

? Ukaan (1)

The Yoruboid languages and Akoko were once linked as the Defoid branch, but more recently they, Edoid, and Igboid have been suggested to be primary branches of an as-yet unnamed group, often abbreviated yeai. Similarly, Oko, Nupoid, and Idomoid are often grouped together under the acronym noi. Ukaan is an Atlantic–Congo language, but it is unclear if it belongs to the Volta–Niger family; Blench suspects it is closer to Benue–Congo.

In an automated computational analysis (ASJP 4) by Müller et al. (2013):[1]

* Gbe and Yoruboid are subsumed within Kwa.
* Edoid and Cross River group together.
* Akpes and Ukaan group together.
* Oko is grouped within Idomoid.

## Branches and locations[edit]

Clickable Volta-Niger languages displayed in pink

Below is a list of major Volta–Niger branches and their primary locations (centres of diversity) in Nigeria based on Blench (2019).[2]

Distributions of Volta–Niger branches[2] Branch | Primary locations

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Akpes | Akoko North LGA, Ondo State
Ayere–Ahan | Akoko North LGA, Ondo State
Gbe | Badagry LGA, Lagos State and adjacent areas
Yoruboid | Southwestern Nigeria
Edoid | Rivers, Edo, Ondo, Delta States
Akoko | Akoko North LGA, Ondo State
Igboid | Anambra, Rivers, Delta States (excluding Igbo proper)
Nupoid | Niger, Kwara, Nasarawa States
Oko | Okene LGA, Kogi State
Idomoid | Benue, Cross River, Nasarawa States
Ukaan | Akoko North LGA, Ondo State

## Comparative vocabulary[edit]

Some important branches of the Volta–Niger and Benue–Congo families are concentrated in Nigeria, Cameroon, and Benin.

Sample basic vocabulary in different Volta–Niger branches:

Language | eye | ear | nose | tooth | tongue | mouth | blood | bone | tree | water | eat | name

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Yoruba | ojú | etí | imú | eyín | ahọ́n | ẹnu | ẹ̀jẹ | egungun | igi | omi | jẹ | orúkọ
Proto-Yoruboid[3] | *e-jú | *e-tĩ́ | *ɪ-ŋmʊ̃́ | *e-ɲĩ́ | *ʊ-ɓã́ | *a-rʊ̃ã | *ɛ̀-byɛ̀ | *V-k'ĩk'ũ | *e-gĩ (i-) | *o-mĩ | *jɛ | *o-ɗú
Proto-Yoruboid[4] | *éjú | *étí | *ímṵ́ | *éŋḭ́ | Yor. ahá̰ | *ɛ́lṵ ? | *ɛ̀gyɛ̀ | *égbṵ́gbṵ́ | Yor. igi | *ómḭ | *jɛṵ | *órú- ?
Proto-Edoid[5] | *dhI-dhω | *ghU-chɔGɪ | *I-chuəNi; *-chuveNi | *dhI-kωN | *U-dhamhɪ | *A-nuə | *U-ɟɪ-, -ɟɪa |  | *U-thaNɪ | *A-mɪN | *dhɪ | *dhI-ni
Proto-Gbe[6] |  | *-tó |  | *aɖú | *-ɖɛ́ | *-ɖũ; *-ɖũkpá | *-ʁʷũ | *-χʷú | *-tĩ́ | *-tsĩ | *ɖu | *yĩ́kɔ́
Akoko (Arigidi)[7] | ódʒù | oto | (odʒ)uw̃ɔ̃̀ | éɲì̃ | ɛŕɛ̀ | õrũ | ɛ̀dʒɛ̀ | ɛ̀dʒɛ̀ | ɔ́hɔ̃̄ | edʒĩ | dʒō |
Proto-Akpes;[8] Akpes (Ajowa)[9] | *èyò | *àsùgù | *àhũ | *ìyũ | *ìndàlì | *onu | ìkɔ̃̀n |  | ɔhuni | imi |  | ìmũ̀nũ̀
Ayere[10] | ɛ́jɛ́ | éndí | ówṹ | éyĩ́ | únú | anu | èʃwè | egbe | oŋwu | oyin | ʃe | éwú
Ahan[10] | ewú | éndí | owũ | eɲĩ | irɛ̃́ | arũ | èsè | igbegbe |  | oɲĩ |  |
Proto-Nupoid[11] | *e-wie | *CV-tuNukpua | *V-bhʊə | *jiNkɔN | *a-giNtara |  | *V-giə | *CV-kiukuNu | *V-cigbɔNa | *nuNŋʷa | *gi | *CV-jɛ
Proto-Ebiroid[11] | *e-ji | *ʊ-tɔkpa | *a-ʃɪ | *a-ɲɪ | *ɪra-rɛ |  | *aɲa | *ʧʊku | *ɔ-tʃɪ | *e-ɲi | *rɪ | *ɪrɛ-ʃa
Oko[12] | áɲẽ́ | ɔ́tɔ̃́ | ɔ́mɔ́dɔ́rɛ̀ | írú | ɛ́làárɛ́ | ówó | ɛ́ŋɔ̂ | ófú | esáma | ébí | jé | íwúrù
Proto-Idomoid[13] | *eyi | *ʊrʊ/a- | *eŋgwu |  |  |  | *ìmàǹjī |  |  | *ìmànyì; *ma-yeni ? | *ri | *ɛɲɪ
Proto-Ukaan[14] | *ìdʒì | *ʊrʊgV | *ɔ̀kɔ̃́rɔ̃̀ | *ʊ̀ɲʊ̀gV; jɔ̀r | *ɛ̀ɲʊ̃́ | *òŋʷṍ | *ùɲṹ | *òɣʷó | *ɔ̀hʊ̃́nṽ | *ùmɔ̃̀ | *jé | *ìnĩ́
Proto-Benue–Congo[15] | *-lito | *-tuŋi | *-zua | *-nini, *-nino; *-sana; *-gaŋgo (±) | *-lemi; *-lake |  | *-zi; *-luŋ | *-kupe | *-titi; *-kwon | *-izi (±); *-ni (±) |  | *-zina

### Numerals[edit]

Comparison of numerals in individual languages:[16]

Classification | Language | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

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Akpes | Akpes | íɡbōn / ēkìnì | īdīan(ì) | īsās(ì) | īnīŋ(ì) | īʃōn(ì) | ītʃānās(ì) | ītʃēnētʃ(ì) | ānāānīŋ(ì) | ɔ̀kpɔ̄lɔ̀ʃ(ì) | īyōf(ì)
Defoid, Akokoid | Ariɡidi (Iɡasi) | [kɛ̀ɛ́ɲɛ̃] | [kèji] | [kedà] | [kenɛ] | [kéntɔ̀] | [kefà] | [keɸi] | [kerò] | [kéndà] | [kéjè]
Defoid, Akokoid | Òɡè | [ékán] | [ìyí] | [ídaː] | [ínɛ́] | [ítɔ̃̀] | [ìfà] | [ídʒúí] | [írò] | [ĩ́ŋa] | [íyè]
Defoid, Ayere-Ahan | Ayere (Úwû) | ĩ̀kã̌ | ìd͡ʒì | ītā | ĩ̄jẽ̄ | ĩ̄tṹ | ìfà | īd͡ʒʷī | īrō | ĩ̄dã̂ | īɡʷá
Defoid, Ayere-Ahan | Ayu | ɪdɪ | ahwa /afah | ataar | anaŋaʃ | atuɡen | atɛɛr | ataraŋaʃ (3 ?) | anababoɡ (4 ?) | atuluboɡ (5 ?) | iʃoɡ / ajalaboɡ
Defoid, Yoruboid, Edekiri | Cabe (Ede Cabe) | ɔ̀kɛ̃ | mɛ̃́d͡ʒì | mɛ̃́ta | mɛ̃́hɛ̃ | mɛ́hú | mɛ̃́fà | méd͡ʒe | mɛ̃́d͡ʒɔ | mɛ̃́sɛ̃́ | mɛ̃́wá
Defoid, Yoruboid, Edekiri | Ede Ica (Ica) | ɔkɔ̃ | eɟi | ɛta | ɛ̃ɛ̃ | ɛwu | ɛfa | ɛɟɛ | ɛɟɔ | ɛsɔ̃ | ɛya
Defoid, Yoruboid, Edekiri | Idaca (Ede Idaca) | òbú | méd͡ʒi | mɛ́ta | mírĩ | mɛrú | mɛ́fà | méd͡ʒe | mɛ́d͡ʒɔ | mɛ́sã | maa
Defoid, Yoruboid, Edekiri | Ifè (1) | ɛnɛ́ | méèdzì | mɛ́ɛta | mɛ́ɛrɛ̃ | mɛ́ɛrú | mɛ́ɛfà | méedze | mɛ́ɛdzɔ | mɛsã́ | maá
Defoid, Yoruboid, Edekiri | Ifè (2) | ɛ̀nɛ / ɔ̀kɔ̃̀ | méèdzì | mɛ́ɛta | mɛ́ɛrɛ̃ | mɛ́ɛrú | mɛ́ɛfà | méedze | mɛ́ɛdzɔ | mɛsã́ | maá
Defoid, Yoruboid, Edekiri | Ulukwumi | ɔ̀kɑ̃ | mɛ́zì | mɛ́tɑ | mɛ́rɛ̃ | mɛ́rú | mɛ́fɑ̀ | méze | mɛ́zɔ | mɛ̀hɑ̃́ | mɛ́ɡʷɑ́
Defoid, Yoruboid, Edekiri | Yoruba | oókan [oókɔ̃] | eéjì [eéɟì] | ẹẹ́ta [ɛɛ́ta] | ẹẹ́rin [ɛɛ́ɾĩ] | aárùn-ún [aáɾũ̀ṹ] | ẹẹ́fà [ɛɛ́fà] | eéje [eéɟe] | ẹẹ́jọ [ɛɛ́ɟɔ] | ẹẹ́sàn-án [ɛɛ́sɔ̃̀ɔ̃́] | ẹẹ́wàá [ɛɛ́wàá]
Defoid, Yoruboid, Igala | Igala (1) | éɲɛ́ / ǒkâ | èdʒì | ɛ̀ta | ɛ̀lɛ̀ | ɛ̀lú | ɛ̀fà | èbʲe | ɛ̀dʒɔ | ɛ̀lá | ɛ̀ɡʷá
Defoid, Yoruboid, Igala | Igala (2) | ínyé̩ [íɲɛ́] | èjì [èdʒì] | ẹ̀tā [ɛ̀tā] | ẹ̀lè̩ [ɛ̀lɛ̀] | è̩lú [ɛ̀lú] | ẹ̀fè̩ [ɛ̀fɛ̀] | ẹ̀biē [èbjiē] | ẹ̀jọ̄ [ɛ̀dʒɔ] | ẹ̀lá [ɛ̀lá] | ẹ̀ɡwá [ɛ̀ɡwá]
Ukaan | Ukaan (Ikaan dialect) | ʃí | wā | tāːs / hrāhr | nāʲ / nā | hrʊ̀ːn / tòːn | hràdá | hránèʃì | nàːnáʲ / nàːná | hráòʃì | òpú *
Edoid, Delta | Degema | ɔβʊ́ | iβə́ | sáj (ɪsáj) | iní | súwón (ɪsúwón) | jɪ́sa (ɪjɪ́sá) | síjéβə (isíjéβá) | anɪ́ (ɪnʊ́mán) | əsí (ɔβʊ óte mʊ iɡ͡beɲ) (10 -1) | əɡ͡beɲ (iɡ͡béɲ)
Edoid, Delta | Engenni | ávʊ̀ | ívà | ɛ́sàà | ínìì | ìsyònì | ɛ̀nyísà | ìsyovà | ɛ̀nʊ̀màní | àvʊ́mó (10 -1) | íɡ͡bèì
Edoid, North-Central, Edo-Esan-Ora | Ẹdo (1) | òwó [òwó] (used only to count) | èvá [èvá]́ | èhá [èhá] | èné [ènɛ́] | ìsén [ìsɛ́] or [ìsɛ̃́] ?? | èhàn [èhã̀] | ìhírọ̃n [ìhĩɺɔ]̃ | èrẹ̀nrẹ̀n [èɺɛ̃ɺɛ̃] | ìhìnrín [ihĩɺĩ] | ìɡ͡bé [ìɡ͡bé]
Edoid, North-Central, Edo-Esan-Ora | Edo (Bini) (2) | ɔ̀k͡pá / òwo (used only to count) | èvá | èhá | ènɛ́ | ìsɛ́n | ěhàn | ìhinrɔ̀n | èrɛ̀nrɛ́n | ìhìnrín | ìɡ͡bé
Edoid, North-Central, Edo-Esan-Ora | Emai (Emai-luleha-Ora) | ɔ̀k͡pa | èvà | èéà | èélè | ìíhìɛ̀n | èéhàn | ìhíɔ́n | èɛ́n | ìsín | ìɡ͡bé
Edoid, North-Central, Edo-Esan-Ora | Esan | ɔ̀k͡pá | èvá | éà | énɛ̃̀ | ìsɛ̃́ | éhã́ | ìhĩ́lɔ̃̀ | èlɛ̃́lɛ̃̀ | ĩ̀sɪ̃́lɪ̃̀ | ìɡ͡bé
Edoid, North-Central, Ghotuo-Uneme-Yekhee | Etsako (Yekhee) | ọkpa [ɔk͡pà] | eva [évà] | ela [élà] | ejiẹ [éʒié] | ise [ìsé] | esa [ésà] | isevha [ìsévhà] | eleeh [éːléː] | ithi [ìtií] | iɡbe [ìɡ͡bé]̄
Edoid, North-Central, Ghotuo-Uneme-Yekhee | Ghotuo | ɔ̀k͡pā | èvā | èēsà | èēnè | ìīʒè / ìīʒìè | ìjhēhà / ìēhà jh = a week, vd | ìhīɲã̄ | ènhīē nh = n̥ voiceless n ? | ìsī | ìɡ͡bē LM͡L
Edoid, North-Central, Ghotuo-Uneme-Yekhee | Okphela (1) | oɡ͡ɣʷo ˥˩ ˨ | evɑ ˨ ˧ | esɛ ˧ ˨ | ene ˧ ˨ | iʃe ˧ ˨ | esesa ˨ ˧ ˨ | iʃilʷɑ ˨ ˧ ˨ | elele ˨ ˩˥ ˨ | itili ˨ ˩˥ ˧ | iɡ͡be ˨ ˧
Edoid, North-Central, Ghotuo-Uneme-Yekhee | Ivbie-North-Okphele-Arhe (2) | oɣuo | eva | esɛ | ene | iʃie | esesa | iʃilua | elele | itili | iɡ͡be
Edoid, North-Central, Ghotuo-Uneme-Yekhee | Ososo | oɡwo [òɡwò] | eva [èvá] | esa [èsá] | ene [èné] | ichie [ìt͡ʃè] | esesa [èsâsà] | ifuena [ìfwènà] | inyenye [ìɲèɲẽ́] | isini [ìsĩ̀nĩ̀] | iɡbe [ìɡ͡bé]
Edoid, Northwestern, Southern | Okpamheri | ɔkpa | eva | esa | enen | ishe | eaza | izuonua | ɛnien | isie | iɡ͡be
Edoid, Southwestern | Isoko (1) | ɔvʊ | ɪ́vɛ | ɪ́sa | ɪ́nɪ | ɪ́sɔɪ | ɪ́zɪ́za | ɪ́hɾɛ | ɪ́rɪ́ː | ɪ́zɪ́ː | ɪ́kpe
Edoid, Southwestern | Isoko (2) | ọvụ | ịvẹ | ịsạ | ịnị | isoi | ịzịza | ihrẹ | ịrịị | izii | ikpe
Edoid, Southwestern | Urhobo | ɔ̀vò | ǐvɛ̀ | ěrà | ɛ̌nè | ǐjòɾĩ̀ | ěsã́ | ǐɣwɾɛ̃́ | ɛ̌ɾéɾẽ | ǐríɾĩ | ǐxwè
Igboid, Ekpeye | Ekpeye | nwùrnér, ŋìnɛ́ | ɓɨ̂bɔ́ bh = IPA [ɓ] | ɓɨ́tɔ́ ir = IPA [ɨ] | ɓɨ́nɔ̂ o̠r = IPA [ɔ] | ɓísê | ɓísû | ɓɨ́sábɔ̀ | ɓɨ́sátɔ́ | ɓɨ́sánɔ̂ or nàzáma or nàzáma ɗi | ɗì dh = IPA [ɗ]
Igboid, Igbo | Igbo (1) | ótù | àbʊ̄ɔ́ | àtɔ́ | ànɔ́ | ìsé | ìsiì | àsáà | àsátɔ́ | ìtólú | ìri
Igboid, Igbo | Échiè Igbo (2) | otù | àbʊ̀ɔ́ ~ m̀bʊ̀ɔ̀ ~ nam̀̀ | tɔ ~ àtɔ | (ǹ)nɔ ~ ànɔ | se~ ìse | ʃiì ~ ìʃiì | saà ~ àsaà | satɔ̄ ~ àsatɔ̄ | totū ~ ìtolū | ìri
Igboid, Igbo | Igbo (3) | otù | àbʊɔ́ | àtɔ | ànɔ | ìse | ìsiì | àsaà | àsatɔ́ | ìtolú, ̀tolú | ìri
Igboid, Igbo | Ikwere | ótù | ɛ̀bɔ̀ | ɛ̀tɔ́ | ɛ̀nɔ̂ | ìsẽ̂ | ìsínù | ɛ̀sâ | ɛ̀sátɔ́ | tólú | ǹrí
Oko | Oko (Oko-Eni-Osayen) | ɔ̀ɔ́rɛ / ɔ̀jɛ́rɛ | ɛ̀bɔ̀rɛ̀ | ɛ̀ta | ɛ̀na | ùpi | ɔ̀pɔ́nɔ̀ɔ́rɛ (5 + 1) * | úfɔ́mbɔ̀rɛ̀ (5 + 2) * | ɔ̀nɔ́kɔ́nɔkɔ́nɔ | ùbɔ́ɔ̀rɛ̀ (< 'ten is less than one ') * | ɛ̀fɔ
Nupoid, Ebira-Gade | Ebira | ɔ̀ɔ̀nyɪ̄ | ɛ̀ɛ̀vā | ɛ̀ɛ̀tá | ɛ̀ɛ̀nà | ɛ̀ɛ̀hɪ́ | hɪ̋nɔ̋nyɪ̄ (5+ 1) | hɪ̋m̋bā (5+ 2) | hɪ̋n̋tá (5+ 3) | hɪ̋ǹnà (5+ 4) | ɛ̀ɛ̀wʊ́
Nupoid, Nupe-Gbagyi, Gbagyi-Gbari | Gbari | ɡ͡bᵐaːɾí | ŋʷã̂ba | ŋʷã̂t͡ʃa | ŋʷã̂ɲi | ŋʷã̂tⁿù | tⁿúwĩ (5+ 1) | tⁿâba (5+ 2) | tⁿẫ̂t͡ʃa (5+ 3) | tⁿâɲi (5+ 4) | ŋʷã̂wò
Nupoid, Nupe-Gbagyi, Nupe | Kakanda | ɡúní | ɡúbà | ɡútá | ɡúni | ɡútũ | ɡútuaɲĩ̀ (5+ 1) | ɡútuabà (5+ 2) | ɡútòtá (5+ 3) | ɡútuani (5+ 4) | ɡúwo
Nupoid, Nupe-Gbagyi, Nupe | Nupe | niní | ɡúbà | ɡútá | ɡúni | ɡútsũ | ɡútswàɲĩ (5+ 1) | ɡútwàbà (5+ 2) | ɡútotá (5+ 3) | ɡútwã̀ni (5+ 4) | ɡúwo
Idomoid, Akweya, Eloyi | Eloyi (Afo) (1) | ńɡwònzé | ńɡwòpó | ńɡwòlá | ńɡwòndó | ńɡwolɔ́ | ńɡwɔ̀rɛ́nyí | ńɡwòrówó | ńɡwòràndá | ńɡwòròndó | úwó
Idomoid, Akweya, Eloyi | Eloyi (Afo) (2) | ònzé | òpā | ōlá | ōndō | ɔ̄lɔ̀ o̠= ɔ | ōròwò | ɔ̀rɛ̀nyi | ōràndá | òròndō | ūwó
Idomoid, Akweya, Eloyi | Eloyi (3) | ònzé | òpā | ōlá | ōndō | ō̠lò̠ | ōròwò | ò̠rɛ̀nyi | ōràndá | òròndō | ūwó
Idomoid, Akweya, Etulo-Idoma, Idoma | Agatu | óyè [ɔ́jè] | ẹ̀pà [ɛ̀pà] | ẹ̀tá [ɛ̀tá] | ẹ̀nẹ̀ [ɛ́nɛ̀] | ẹ̀họ́ [ɛ̀hɔ́] | ẹ̀hílí [ɛ̀hílí] | àhápà [àhápà] | àhàtá [àhàtá] | àhànè [àhànè] | ìɡwó [ìɡwó ]
Idomoid, Akweya, Etulo-Idoma, Idoma | Alago | óje | èpà | èta | ènɛ̀ | ɛ̀hɔ | ìhirì | àhapà | àhatá | àhánɛ̀ | ìɡʷó
Idomoid, Akweya, Etulo-Idoma, Idoma | Idoma | éyè [éjè] | ẹpà [ɛ́pà] | ẹtá [ɛtá] | ẹhẹ [ɛ́hɛ́] | ẹhọ [ɛ́hɔ] | ẹhili [ɛ́hili] | àhapà [àhapà] | àhátá [àhátá] | àhánẹ [àhánɛ́] | iɡwó [iɡwó ]
Idomoid, Akweya, Etulo-Idoma, Idoma | Igede | óòk͡pók͡póh | îmíìyèh | ītā | īnêh | ērʊ̄ / īrʊ̄ | īrʷɔ̀nyɛ̀ | īrùyèh | īnêkúh | ìhíkítʃú | īwō
Idomoid, Akweya, Etulo-Idoma, Idoma | Yala | ósè | ɛ̀pà | ɛ̀ta | ɛ̀nɛ̀ | èrwɔ | èríwi | àrapà | àratá | àranɛ̀ | ìɡwó

## See also[edit]

* Systematic graphic of the Niger–Congo languages with numbers of speakers

## References[edit]

1. ^ Müller, André, Viveka Velupillai, Søren Wichmann, Cecil H. Brown, Eric W. Holman, Sebastian Sauppe, Pamela Brown, Harald Hammarström, Oleg Belyaev, Johann-Mattis List, Dik Bakker, Dmitri Egorov, Matthias Urban, Robert Mailhammer, Matthew S. Dryer, Evgenia Korovina, David Beck, Helen Geyer, Pattie Epps, Anthony Grant, and Pilar Valenzuela. 2013. ASJP World Language Trees of Lexical Similarity: Version 4 (October 2013).
2. ^ a b Blench, Roger (2019). An Atlas of Nigerian Languages (4th ed.). Cambridge: Kay Williamson Educational Foundation.
3. ^ Akinkugbe, Olufẹmi Odutayo. 1978. A comparative phonology of Yoruba dialects, Iṣẹkiri and Igala. Doctoral dissertation, University of Ibadan.
4. ^ Aubry, N., H. Friedman & K. Pozdniakov. 2004. Proto-Yoruba-Igala Swadesh list. Manuscript. Paris: Langage, Langues et Cultures d’Afrique (LLACAN), Centre National de la Récherche Sciéntifique (CNRS).
5. ^ Elugbe, Ben Ohiọmamhẹ. 1989. Comparative Edoid: phonology and lexicon. Delta Series No. 6. Port Harcourt: University of Port Harcourt Press.
6. ^ Capo, Hounkpati B.C. 1991. A Comparative Phonology of Gbe. Publications in African Languages and Linguistics, 14. Berlin/New York: Foris Publications & Garome, Bénin: Labo Gbe (Int).
7. ^ Fadọrọ, Jacob Oludare. 2010. Phonological and lexical variations in Akokoid. Doctoral dissertation, University of Ibadan.
8. ^ Blench, Roger. 2011. Comparative Akpes. m.s.
9. ^ Ibrahim-Arirabiyi, Femi 1989. A comparative reconstruction of Akpes lects: Akoko North, Ondo State. MA thesis. Department of Linguistics and Nigerian Languages, University of Port Harcourt.
10. ^ a b Blench, Roger. 2007. The Ayere and Ahan languages of Central Nigeria and their affinities.
11. ^ a b Bankale, Oyetayo Abiodun. 2006. Comparative Ebiroid and Nupoid. Doctoral dissertation, University of Ibadan.
12. ^ Jungraithmayr, Herrmann. 1973. Eine Wortliste des Ọkọ, der Sprache von Ogori (Nigeria). Africana Marburgensia 6: 58-66.
13. ^ Armstrong, Robert G. 1983. The Idomoid Languages of the Benue and Cross River Valleys. Journal of West African Languages 13: 91-147.
14. ^ Abiodun, Michael Ajibola. 1999. A comparative phonology and morphology of Ukaan dialects of Old Akoko division. Doctoral dissertation. University of Ilorin.
15. ^ de Wolf, Paul. 1971. The Noun-Class System of Proto-Benue-Congo. Janua Linguarum. Series Practica 167. The Hague: Mouton.
16. ^ Chan, Eugene (2019). "The Niger-Congo Language Phylum". Numeral Systems of the World's Languages.

* Wolf, Paul Polydoor de (1971) The Noun Class System of Proto-Benue–Congo (Thesis, Leiden University). The Hague/Paris: Mouton.
* Williamson, Kay (1989) 'Benue–Congo Overview', pp. 248–274 in Bendor-Samuel, John & Rhonda L. Hartell (eds.) The Niger–Congo Languages -- A classification and description of Africa's largest language family. Lanham, Maryland: University Press of America.
* Williamson & Blench (2000) 'Niger–Congo', in Heine & Nurse, African Languages

* v
* t
* e

Volta–Niger languages

Ayere-Ahan|

* Ayere
* Ahan

Gbe|

* Aja
* Alada
* Ayizo
* Ewe
* Fon
* Gbesi
* Gen
* Gun
* Tɔli
* Tofin
* Pherá
* Phla
* Saxwe

Igboid|

* Ekpeye
* Ezaa
* Igbo
* Ika
* Ikwerre
* Ikwo
* Izii
* Mgbo
* Ogba

Yoruboid|

* Ede
* Igala
* Itsekiri
* Yoruba

Edoid|

| Delta|

* Degema
* Engenni
* Epie

|

North-Central|

* Afenmai
* Edo
* Enwan
* Esan
* Ghotuo
* Igwe
* Ikhin
* Ikpeshi
* Ivbiosakon
* Okpela
* Ososo
* Sasaru
* Uneme

Northwestern|

* Akuku
* Ehueun
* Iyayu
* Okpamheri
* Oloma
* NW Okpe
* Uhami
* Ukue

Southwestern|

* Eruwa
* Isoko
* SW Okpe
* Urhobo
* Uvbie

Nupoid|

* Asu
* Bassa Nge
* Dibo
* Ebira
* Gade
* Gupa-Abawa
* Gwari
* Kakanda
* Kami
* Koro Zuba
* Kupa
* Nupe

Idomoid|

* Agatu
* Alago
* Etulo
* Idoma
* Igede
* Yace
* Akpa
* Yala

Others|

* Akpes
* Akoko
* Oko
* Ukaan

* v
* t
* e

Niger–Congo branches

Atlantic–Congo|

| Atlantic|

* Bak
* Bijago
* Mel
* Rio Nunez
* Senegambian
* Nalu
* Limba
* Gola
* Sua

|

(Ivory Coast and Ghana)|

* Kru
* Kwa
* Dompo
* Ega
* Mbre
* Siamou
* Mangree ?
* Mpra ?

Volta–Niger|

* Akpes
* Ayere–Ahan
* Edoid
* Gbe
* Idomoid
* Igboid
* Nupoid
* Yoruboid
* Akoko
* Oko
* Ukaan

Benue–Congo|

| Platoid|

* Jukunoid
* Kainji
* Plateau

|

Cross River|

* Central Delta
* Lower Cross River
* Upper Cross River
* Ogoni

Northern Bantoid|

* Dakoid
* Mambiloid
* Tikar

Southern Bantoid|

* Bantu
* Beboid
* Bendi
* Ekoid
* Grassfields
* Tivoid

Savannas|

| Adamawa|

* Bena–Mboi
* Bikwin–Jen
* Bua
* Fali
* Kim
* Mbum (Kebi–Benue)
* Mumuye
* Samba–Duru
* Tula–Waja
* Yendang (Maya)
* Day
* Kwah (Baa)
* Longuda
* Nyingwom (Kam)

|

Ubangian|

* Banda
* Gbaya
* Mba
* Ngbaka (Mundu–Baka)
* Sere (Ndogo)
* Zande
* Ngbandi

Gur|

* Central Gur
* Senufo
* Kulango
* Miyobe
* Tiefo
* Tusian
* Viemo
* Samo (Burkina) ?

Mande|

| Southeast|

| Eastern|

* Bissa
* Busa–Boko
* Shanga–Tyenga
* Samo (Burkina) ?

|

Southern|

* Dan–Goo–Tura
* Guro–Yaure
* Mwa–Wan
* Gban–Beng
* Mano

West|

| Central West
(Manding–Kpelle)|

* Jogo
* Vai–Kono
* Manding
* Mokole
* Soso–Jalonke (Susu–Yalunka)
* Southwest Mande

|

Northwest
(Samogo–Soninke)|

* Soninke–Bozo
* Samogo (partial: Duun–Sembla)
* Bobo
* Jowulu (Jɔ)

Kordofanian|

* Katla
* Lafofa
* Rashad
* Talodi–Heiban

others|

* Dogon
* Ijoid
* Defaka

isolates|

* Bangime
* Laal
* Jalaa ?
* Komta ?

unclassified|

* Degere ?
* Rimba ?
* Dima–Bottego ?
* Omaio ?
* "Serengeti–Dorobo" ?
* Wawu ?

(proto-languages)|

* Proto-Niger–Congo
* Proto-Yoruboid
* Proto-Bantu

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