RhymeZone: surcingle definitions

Definitions of surcingle:

noun: A long unpadded strap to pass over and keep in place a blanket, pack or saddle on an animal.
noun: A piece of tack wrapped around the belly of a horse, to use when longeing.
noun: A girdle to fasten a garment, especially a cassock.
verb: (transitive) To fasten with a surcingle.

(Definitions from Wiktionary)