trouser    ipantaro, ipantalo
(short trouser, shorts for sports) ikabutura
En-En dictionary 
ipantaro (ama-  5  class 5
singular: i-,iri-
plural: ama-
  
trouser (also ipantalo, Fr.)
ikabutura (ama-  5  class 5
singular: i-,iri-
plural: ama-
  
short trousers, shorts (not underwear)