destroyed    (to be) gusiribāngwa, gutikira
(completely while you are watching) kunyika
En-En dictionary 
gutikira (-tikiye)     v    to perish, be destroyed
gukomvora (-komvoye)     v    to be destroyed suddenly
kunyika (-nyitse)     v    1. to slide (landslide), 2. to pack down (vi), 3. to come to an end, be completely destroyed (while you are watching, to suddenly disappear as you watch)
kumarwa (-mazwe)     v    to be finished, destroyed
gusiribāngwa (-siribānzwe)     v    1. to be destroyed, 2. to be trampled on
 destroyed found in: Kirundi I (Study lessons)
lesson 94   Relative Clauses