ubupfu     8  class 8
singular: ubu-
  
(no pl.) 1. folly, 2. ignorance
ubupfunya     8  class 8
singular: ubu-
  
(no pl.) failure to grow properly
folly    ubupfu, ubusazi
En-En dictionary 
ignorance    ubupfu, ubutūngu, ubuzimire
En-En dictionary