kuvuba (-vuvye)   v    to cause to rain (sorcerer), to pour water on hair before cutting
pour    (to ~ into) gusuka
(to shed) kuvīra
(to ~ out) gusēsa
(~ forth water, as spring) kududubiza
(~ milk down another's throat) kuramiza
(~ water on another's hands) kwūhīra
(~ water on hair before cutting it) kuvuba
En-En dictionary 
rain    imvura
(light, fine) urunyanyāga
(main rain season) itumba
(season of early rains) agatāsi
(very heavy) isegenya
(very heavy, sweeps away crops on hillside) inkukūra
(wind and rain, storm) inkūbi
(path of water in heavy rain) umuvo
(to ~) kugwa
(with imvura, i.e. imvura iragwa)
(to begin to ~ after dry season) gutāsura
(to cause to, sorcerer) kuvuba
(early in morning or for a long time) kuvōvōta
(heavily) guhonoka
(a long time without stopping) kujobanya
(on) kuvubira
(softly) kunyanyāga
(to threaten to) gukuba
(to fall continuously) gushāna
(to fall heavily) kuzibiranya
(to go for shelter in) kwūgama
(to be soaked by downpour) kujōbeka
En-En dictionary