tribe    ubwōko
(strong clan) igisata
En-En dictionary 
ikigaga (ibi-)     4  class 4
singular: iki-,ic-
plural: ibi-,ivy-
  
1. populous tribe or family, 2. deformity (from birth), 3. corpse
ubwōko (am-)     8  class 8
singular: ubu-
plural: ama-
  
1. race, 2. nation, 3. tribe, 4. kind, species, breed
populous    (tribe or family) ikigaga
(strong) igisata
En-En dictionary