umuvyiro (imi-  2  class 2
singular: umu-
plural: imi-
  
very black, soot
black    (colour) umufyīri, agafyīri
(very black) umuvyiro
(to be black) kwīrabura
En-En dictionary 
colour    irāngi
(black) umukata, umufyiri, agafyīri,
(very) umuvyiro
(black mud) urushānga
(blue) ubururu
(brown) ibihogo
(brown, light) akagājo, umuyēnzi
(brownish black cow) ikirāyi
(gray) -vivi, agahīza, akavūzo, uruvūzo
(green) akātsi gatoto
(orange) umutugutu
(red, like mud) agahama
(tan hair, of goats) umufūmbere
(very white) derere
(yellow) umuhōndo, umutugutu
(yellow, dark) ibihogo
(yellow, light, reddish) umugina
(to be black) kwīrabura
(to be white) kwēra
(to become yellow or reddish, in ripening) kubēnja
(to colour) kuraba
(to ~ in) gusiga amabara
(to change ~, fade) kubēnjūka, kubēngūka
En-En dictionary 
soot    umusēngesēnge, umuvyiro
En-En dictionary