From Wiktionary, the free dictionary
Proposed to have derived from Proto-Yoruboid *ɔ́-mã, Cognates include Igala ọ́ma, Itsekiri ọma, Yoruba ọmọ, Yoruba ọma (SEY)
ɔma
- child
- Baloubi, Désiré (2005) The Morphophonemics of the Idaacha dialect of Yoruba[1], Charlotte, North Carolina: Conquering Books, →DOI, →ISBN, page 41