ifuti (ama-)     5  class 5
singular: i-,iri-
plural: ama-
  
mistake, error
error    ifuti, ikosa, ikosha
En-En dictionary 
mistake    ikosa (Sw.), ifuti
(to make a ~) gukosha
(to make a ~ in counting or speaking) kuyoba
En-En dictionary 
blunder    igisozo, ifuti
En-En dictionary