polish    (to) gukurūngira, gukuyēngeza, gusēna
En-En dictionary 
gusēna (-sēnnye)     v    1. to make smooth or level, 2. to polish
gutsirita (-tsiritse)   v    1. to rub, 2. to polish
gukurūngira (-kurūngiye)     v    to polish, make smooth
gukuyēngeza (-kuyēngeje)     v    1. to polish, 2. to smooth out