icumu (ama-)     5  class 5
singular: i-,iri-
plural: ama-
  
spear
crime    igicumuro
(to commit) gucumura
En-En dictionary 
sin    icāha, igicumuro, ikigabitānyo
En-En dictionary 
spear    icumu
(stuck in person) urubāngo
(spears on big reeds and grasses) umusokoro
(to fall on ~ and be injured) gushōka
En-En dictionary 
 icumu found in: Kirundi I (Study lessons)
lesson 19   Class 5 i–, ama– & Continuous present
 icumu found in: Imigani (tales)
Umugani 33   Akenese, uko kaje
Umugani 49   Ndambi na ndanziza
 icumu found in: Imyibutsa (proverbs)
Umwibutsa 129   Hagutera icumu nyene Imana...
Umwibutsa 332   Nta wutera icumu mw'icumi....