thicken   ▶ kuvura, gufatana, kuvuza
En-En dictionary 
gufatana (-fatanye)     v   ▶ 1. to stick together, 2. coagulate, thicken (vi)
kuvura (-vuze)   v   ▶ 1. to sour (milk), 2. to thicken (vi), 3. to coagulate
kuvurisha (-vurishije)   v   ▶ to cause to thicken, sour by