fiador

noun fi·a·dor \ ¦fēə¦dȯ(ə)r \

Definition of fiador

plural -s

: a cord fastened to a hackamore and acting as a throatlatch

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Origin and Etymology of fiador

Spanish, literally, guarantor, from fiado (past participle of fiar to trust, guarantee, from—assumed—Vulgar Latin fidare, alteration of Latin fidere to trust) + -or