sufficient    (to be, for) kubūmba, gukwīra
En-En dictionary 
kubūmba (-būmvye)     v    1. to mold, work with clay (bricks, pottery), 2. to satisfy, 3. be sufficient for
 sufficient found in: Kirundi I (Study lessons)
lesson 65   –o with the Infinitive
lesson 89   Not Yet Tense