The term is largely only used in poetry or religious references in Standard Yorùbá, where it refers to a coronet. Its semantic environment is significantly restricted in comparison to its SEY counterparts. Its existence in Itsekiri ẹkòró (“hat”) may suggest a borrowing from Oǹdó or Ìkálẹ̀ to Yorùbá or suggests that the term may be of Proto-Edekiri origin. Also see Itsekiri ikoroghẹ̀ (“crown”). The origin of Sense 2 comes from the association with Ògún as a warrior-king, thus his "crown" is a helmet one uses in battle.