From Wiktionary, the free dictionary
Cognate with Itsekiri akpakpa, likely of Southeast Yoruba origin borrowed into Ekiti
ọ̀pàpà
- (dated, Ekiti, Ondo, Eastern Akoko) harmattan; the strong winds associated with the harmattan
- Synonym: ọyẹ́
- ọ̀pàpà àjàkàlú ― The strong winds that blow throughout the town (praise poetry of a king or deity)