Compare with Olukumi agó, Itsekiri ẹgó, Igala àgó, Ayere úgó (“navel”). Proposed to be derived from Proto-Yoruba *à-gó, from Proto-Edekiri *à-gó, ultimately from Proto-Yoruboid *à-gó. It is unclear if this word was used in Standard Yoruba as there are few texts that cite its existence in Standard Yoruba. It is possible that the word had become long obsolete in Standard Yoruba.