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, or Proto-SEY-Itsekiri origin. Also see Itsekiri ikoroghẹ̀ (“crown”), and Yoruba àkòró (“coronet”)