spouse   husband    umugabo, umugēnzi
umucance (lit. one who broke the hymen)
(to lose one's ~ by death) gupfākara
En-En dictionary 
kubēnguka (-bēngutse)     v    1. to fall in love, 2. to choose a spouse
 spouse found in: Imyibutsa (proverbs)
Umwibutsa 2   Urugo ntirwinjira mu rundi....
Umwibutsa 3   Igiti umuntu aturira ntakirangamiza....