kurunga (-runze)     v    to put butter in food
 kurunga : Simple Present 9.class sing. of:
kwūnga (-ūnze)   v    1. to stop a quarrel and make them like each other, 2. to join together broken thing
butter    amavuta
(to barter) kumadika
(to make) guterera
(to melt, vi) kuyaga
(to put in food) kurunga
En-En dictionary 
season    (to ~) kwongereza akanovera, kurunga
En-En dictionary