relationship    isāno
En-En dictionary 
isano     5  class 5
singular: i-,iri-
  
1. resemblance, similarity, 2. relationship
prince    (blood relationship) umuganwa
En-En dictionary 
 relationship found in: Kirundi II (Grammar)
chapter 17   –kazo– Infix
chapter 53   Nouns of Relationship
 relationship found in: Imyibutsa (proverbs)
Umwibutsa 9   Impene mbi ntuyizirikako iyawe....