Reconstruction:Proto-Yoruboid/ɔ́-jɔ́

Etymology
The Yoruba words and  both come from the root, but it is not clear if  comes from this specific term. Regardless the meaning of the root "jọ́" is not, but perhaps it is a local Yoruboid innovation ultimately referring to the sky or the sun.

Noun

 * 1) day, daytime

Proper noun

 * 1) the deity and spirit associated with the day, sunlight, and the sun. It may existed as either an aspect or a nickname/epithet for the supreme sky deity  (see  and  in Yoruba)