pantaloon

1a or pantaloneplay \ˌpan-tə-ˈlō-nē\ capitalized :  a character in the commedia dell'arte that is usually a skinny old dotard who wears spectacles, slippers, and a tight-fitting combination of trousers and stockingsb :  a buffoon in pantomimes

2 pantaloons plural a :  wide breeches worn especially in England during the reign of Charles IIb :  close-fitting trousers usually having straps passing under the instep and worn especially in the 19th century

3 :  loose-fitting usually shorter than ankle-length trousers