ETYM Old Eng. colt a young horse, ass, or camel, AS. colt; cf. dial. Swed. kullt a boy, lad.
1. A young male horse under the age of four.
2. A young untried person.

ETYM Cf. Icel. fylia, fr. foli foal. Related to Foal.
A young female horse under the age of four.

ETYM Old Eng. fole, AS. fola; akin to Old High Germ. folo, German fohlen, Goth. fula, Icel. foli, Swed. fale, Greek polos, Latin pullus a young animal. Related to Filly, Poultry, Pullet.
A young horse.