kwāgiriza (-āgirije)   v    1. to witness, to certify, to prove, 2. to accuse
accuse    kwāgiriza, kurēga, kwitwarira
(falsely) kudendereza
(each other of spoiling a plan) gutanakw ibirake
En-En dictionary 
certify    kwāgiriza
En-En dictionary 
prove    kwāgiriza, kwerekana, guhinyuza, kujījūra
(that a drink is not poisoned) kurogoza
(to one that he's wrong) kujīnjibura
(a prove) icemezo
En-En dictionary 
witness    (to ~) gushīnga intahe, guhamya, kwāgiriza
(fearlessly in behalf of another) kwemānga
En-En dictionary