o- (lu/n) long valley, cf. kka, ekikko.

o- adv. incurably, with the -a of rel. incurable (of a disease), obulwadde obw'olukkokkere, an incurable disease.

a (of plant), ekibibi, olukko,

e- (ki/bi) slope of a hill; descent; trough, low point; escarpment; valley. cf. kka, olukko.

together with its derivatives, is perhaps related to kka, but because of the sharp divergence in meanings it is listed separately. cf. ekikko, olukko, ssa; kkakkana, kkalira, Ikkata, kkatira, kkiriza.