Main Entry: der·by

Pronunciation: \ˈdər-bē, especially British ˈdär-\

Function: noun

Inflected Form(s): plural derbies

Etymology: Edward Stanley †1834, 12th earl of Derby

Date: 1796

1 : any of several horse races held annually and usually restricted to three-year-olds
2 : a race or contest open to all comers or to a specified category of contestants <bicycle derby>
3 : a man's stiff felt hat with dome-shaped crown and narrow brim

[derby illustration]