bridle
Cross references: 1. restrain 1. bri.dle \'bri-d-*l\ n [ME bridel, fr. OE bri-del; akin to OE bregdan to move qui]ckly 1a: the headgear with which a horse is governed consisting of a headstall, a bit, and reins 1b: a strip of metal joining two parts of a machine esp. for limiting or re straining motion 2: something resembling a bridle in shape or function : as 2a: a length of secured cable with a second cable attached to the bight to which force is applied 2b: CURB, RESTRAINT 2c: FRENUM 2. bridle \'bri-d-lin, -*l-in\ vb or bri.dling 1: to put a bridle upon 2: to restrain with a bridle : to show hostility or resentment esp. by drawing back the head and chin
Webster's English Dictionary