FILLY
Meaning of FILLY in English
/fil"ee/ , n. , pl. fillies .
1. a young female horse.
2. Informal. a girl or young woman.
[ 1400-50; late ME fyly fyla female FOAL ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012