wisdom    ubwēnge
En-En dictionary 
muzitsa   2  class 2
singular: umu-
  
(no pl.) wisdom tooth
mutsitsa (mi-)     2  class 2
singular: umu-
plural: imi-
  
wisdom tooth
ubwēnge     8  class 8
singular: ubu-
  
(no pl.) 1. wisdom, 2. knowledge, knowhow, 3. sense, 4. intelligence, 5. intellect, 6. consciousness
tooth    iryīnyo
(back) ijigo
(cuspid) ibwēna
(front) amarwi
(wisdom) muzitsa, mutsitsa
En-En dictionary 
 wisdom found in: Kirundi I (Study lessons)
lesson 27   Class 8 ubu–, ama–
 wisdom found in: Kirundi II (Grammar)
chapter 54   Comparisons