kuboha (-boshe)     v    to tie, to bind
kubohana (-bohanye)     v    to tie each other
kubohōra (-bohōye)     v    to untie (from kuboha)
bind    guhāmbīra, kuboha
(ropes or whatever is used to bind a criminal) imvuto
En-En dictionary 
tie    (to ~) kuboha, guhāmbīra
(beans on hedge to dry) gushisha
(clothes at waist) gukenyeza
(cow's legs while milking) kujīsha
(firmly) kudādira
(neck of sack) kuniga
(oneself to) kwīhābīra
(rope) kudādira
(securely) kudaga
(together) gutubika, gupfundikanya
(up a bundle) gutēkera
(with knot) gupfundika
(as goat in pasture) kuzirika
En-En dictionary 
 kuboha found in: Kirundi II (Grammar)
chapter 73   How to say “without”