kujījūka (-jījūtse)     v    1. to leave, quit altogether because a thing is too difficult (e.g. itōngo), 2. to know for certain
know    kumenya, -zi, kuzirikana
(another's thoughts completely) kuvōgera
(facts of a case) guhinyura
(for certain) kujījūka
(to not ~) kuyobera, kuyoberwa
(to not ~ what to do) mwījījānya, kurīgānirwa
(to try to ~ something) kugenzūra
(one who knows more than is expected of him) akagūgu
En-En dictionary 
leave    (to) guheba, kujījūka, kureka, gusiga, kugēnda, kuvaho, gutāha
(at, for) kurekera, gusigira
(abruptly) kwōnjorora
(behind) gusiga
(country) kwāmbuka, guhaba
(country because of famine) gusuhūka
(grass and stuff growing in kraal) gutongoza
(group and go by oneself) kujōnjōra
(inheritance) kuraga
(intention or place) gucungūra
(open) kurāngāza
(out) guhaza
(over) gusigaza
(place) gushingūka
(something with someone) kubītsa
(with) gusigarana
En-En dictionary 
quit    (altogether) kujījūka
(to work carelessly wanting to ~) kuregarega
(to not ~ without accomplishing a certain thing) gushirwa
(to ~ a job) gusezera (ku) akazi
(to ~ work for the day) kugodoka
En-En dictionary