soot    umusēngesēnge, umuvyiro
En-En dictionary 
umuvyiro (imi-  2  class 2
singular: umu-
plural: imi-
  
very black, soot
umusēngesēnge (imi-)     2  class 2
singular: umu-
plural: imi-
  
sparks or coals that go up with the smoke, soot