Reconstruction:Proto-Yoruba/o-ríɣo

Etymology
The compounding of the suffix "ɣo" (later "wo") is possibly an Proto-Edekiri innovation still maintained in a majority of Edekiri languages. Proto-Yoruba likely inherited it but the non-suffixed form likely existed side-by-side, see. A contracted form also likely existed, see. Proposed to be derived from.

Descendant languages also use an e- prefix, which is likely a remnant of an old noun class system where o-/e- prefixes likely related to plurals. This noun class form did not exist in Proto-Yoruboid and thus was long obsolete in Proto-Yoruba, as it is in modern Yoruboid dialects.

Noun

 * 1) head

Descendants

 * Owe
 * (Central and NWY dialects)