behavior   character    (behaviour) imyitwarire, umwifato, imico
En-En dictionary 
imyitwarire  2    (no sg.) character, behavior
 behavior found in: Imyibutsa (proverbs)
Umwibutsa 4   Umugore ntasutamanga aba ashaka...
Umwibutsa 9   Impene mbi ntuyizirikako iyawe....