affection    igikūndiro, ubukūnzi, urukundo
En-En dictionary 
igikūndiro (ibi-)     4  class 4
singular: iki-,ic-
plural: ibi-,ivy-
  
1. permission, 2. affection, sympathy
ubukūnzi     8  class 8
singular: ubu-
  
(no pl.) affection, charity
urukūndo     6  class 6
singular: uru-
  
1. love, 2. deep affection, 3. romance