o- (bu/-) stupidity, foolishness, idiocy, cf. -toole, ekitooletoole, omutooletoole.

o- (mu/ba) stupid/empty-headed person, cf. -toole, obutooletoole, eki- tooletoole.

empty-headed, cf. obu- tooletoole, ekitooletoole, omutooletoole.