upon    ku, kuri
En-En dictionary 
gufyonyoka (-fyonyotse)     v    1. to break completely (vi), 2. to mash (vi), 3. to be thoroughly cooked, 4. to be completely mashed from being stepped upon
kwūbuka (-ūbutse)   v    1. to discover, 2. to come upon suddenly, 3. to jump up and run quickly
kugayika (-gayitse)     v    1. to be despised, 2. be looked down upon
gushīngwa (-shīnzwe)     v    to be agreed upon, to be driven in ground (stake)
ku     prep    1. on, upon, 2. at, 3. to (the outside of a thing), 4. from (outside of a thing), 5. over
kuri     1. to, 2. at, 3. on, upon, 4. for
come    kūza
(all together suddenly) kurandamuka
(apart) gushānyūka, kudohōka
(to come at) (time) kuzīra
(to do something) guherūka
(to an end) guhenebēra, guhera, kunyika
(be coming to an end) guherengetera
(down) kumanuka, kumanuza, kwūruruka
(from) kwāduka, kwānduruka, gukomoka, guturuka, kuva, kuvuduka
(to greet often when one is in disfavour in hopes of gaining favour) kuneganega
(~ here) ingo, ngo, ngwino
(into sight) kurēnguka
(to light) guhinyuka, kwāndagara
(one by one) gutororokanya, gutēraterana
(out, teeth, hoe handle, etc.) guhongoka
(out, stake) gushingūka
(out of water) kwōgorora
(suddenly) guturūmbuka
(to, after fainting) guhembūka
(to pieces) gusambūka
(to the throne) kwīma ku ngoma
(together, crowd) gukungēra
(unexpectedly) kwubīra
(unsewn) gusonoroka (Sw.)
(untied) kubohōka, gupfunduka
(up of itself) kwimeza
(up out of water) kwiburuka
(up thickly, thus not do well) gusorora
(upon suddenly) kwūbuka
(when called) kurabuka
(with) kuzanana
En-En dictionary 
looked    (down upon, to be) kugayika
En-En dictionary 
 upon found in: Kirundi II (Grammar)
chapter 1   Compound Past Tenses
chapter 74   bo as a Causative