clan    umuryāngo
(populous) igisata
En-En dictionary 
remnant    (of clan or family) agahengekezo
En-En dictionary 
agahēngekezo     7  class 7
singular: aka-,aga-
  
(no pl.) little place of refuge, narrow escape, remnant of clan or family
tribe    ubwōko
(strong clan) igisata
En-En dictionary 
umuryāngo (imi-)     2  class 2
singular: umu-
plural: imi-
  
1. door, 2. family, 3. clan, kinship