Surcingle

1. (n.) A belt, band, or girth which passes over a saddle, or over anything laid on a horse's back, to bind it fast.

2. (n.) The girdle of a cassock, by which it is fastened round the waist.

Thesaurus Entries

back band, backstrap, bearing rein, bit, blinders, blinds, breeching, bridle, caparison, cavesson, checkrein, cheekpiece, chinband, cinch, collar, crownband, crupper, curb, gag swivel, girt, girth, hackamore, halter, hames, hametugs, harness, headgear, headstall, hip straps, horn, jaquima, jerk line, jockey, lines, martingale, noseband, pole strap, pommel, reins, ribbons, saddle, shaft tug, side check, snaffle, stirrup, surcingle, tack, tackle, trappings, tug, winker braces, yoke