colt
 oxford
 views  updated Jun 11 2018colt  / kōlt/ •
n. a young, uncastrated male horse, in particular one less than four years old.
 The Oxford Pocket Dictionary of Current English 
   colt
 oxford
 views  updated May 11 2018colt OE. 
colt, applied to the young of the ass and the camel; of obscure orig.
  The Concise Oxford Dictionary of English Etymology T. F. HOAD