Main Entry: ¹bri·dle

Pronunciation: \ˈbrī-d^əl\

Function: noun

Etymology: Middle English bridel, from Old English brīdel; akin to Old English bregdan to move quickly — more at braid

Date: before 12th century

1 : the headgear with which a horse is governed and which carries a bit and reins
2 : a length of line or cable attached to two parts of something to spread the force of a pull; especially : rigging on a kite for attaching line
3 : curb, restraint <set a bridle on his power>