Central DeltaSubgroup of 9 languagesAncestorsNiger-Congo 1552Atlantic-Congo 1452Volta-Congo 1380Benue-Congo 985Cross River 68Delta Cross 59Central DeltaAbureni mgj, a language of NigeriaObulom obu, a language of NigeriaOgbia ogb, a language of NigeriaOgbogolo ogg, a language of NigeriaOgbronuagum ogu, a language of NigeriaO’chi’chi’ xoc, a language of NigeriaCollapse All Expand AllAbua-Odual 2Abua abn, a language of NigeriaOdual odu, a language of NigeriaKugbo 1Kugbo kes, a language of Nigeria