kuvūnga (-vūnze)   v    to crush with hands
kuvūngagura (-vūngaguye)   v    to crush grain
kuvūngagurika (-vūngaguritse)   v    to become crumbs
crumbs    udukorokera, ubuvunguka, utuvunguka
(to become ~) kuvūngagurika
(to ~ easily) kuvūnguka
En-En dictionary 
crush    gufyonyora, gufyonyoka, kuvūngura
(easily) kuvūnguka
(grain, before grinding) kuvūngagura, kuvūngurīsha
(with hands) kuvūnga
(down) gutsindagira
En-En dictionary