kuboza (-bojeje)     v    to rot, spoil (vt)
 kuboza : Prefixless Present 9.class sing. with 1.class 2.pers. pl. object of:
kwōza (-ōgeje)     v    to wash (not body), to clean (vt)
rot    kubora, kuboza
En-En dictionary 
spoil    (to ~, vi) kubora, kwōnōna
(vt) kuboza
(of foods) kugāsha
(another's reputation) kwāmbika ibara
En-En dictionary