ọ̀sán noun /ɔ̀.sã́/
Definitions
  1. midday, afternoon (noon to 4pm)
Etymology
Proposed to be derived from Proto-Yoruboid *ɔ̀-sã́, possibly from ọ̀- (“nominalizing prefix”) + sán (“to shine powerfully, to strike, to be powerful”). Cognate with Igala ọ̀rọ́ka, Itsekiri ọ̀sọ́n.
Component words
ọ̀-nominalizing prefix sánto shine powerfully, to strike, to be powerful
Used in
Source: Wiktionary · etymology 2, where this word is spelled “ọsan”. Reference: en-ọsan-yo-noun-Ikk76Tfo