crupper (n.)
leather saddle-strap on a horse
CE I.ii.56[Dromio of Ephesus to Antipholus of Syracuse] sixpence ... / To pay the saddler for my mistress' crupper
TS III.ii.59[Biondello to Tranio as Lucentio, of Petruchio's horse] with ... a woman's crupper of velure
TS IV.i.72[Grumio to Curtis, of his journey] how I lost my crupper
SHAKESPEARE'S WORDS © 2018 DAVID CRYSTAL & BEN CRYSTAL