[f. BRIDLE sb. + REIN.] A strap or cord attached to the bit, and serving to guide or control the horse; a rein.
1382. Wyclif, Ecclus. xxxiii. 27. Ȝoc and brydil reyne crooken the harde necke.
1552. Huloet, Brydle reine, lorum.
1820. Scott, Abbot, xxxvi. Who but Douglas ought to hold her bridle-rein?
1833. Regul. Instr. Cavalry, I. 104. Carry the butt under the bridle-reins.