scatch
nounEtymology From French escache, from Italian scaccia.
1
Obsolete A kind of bit for the bridle of a horse.
- and thus, having brought your horse to a Post set up for that purpose, and one to assist you with a Rein fastened to the rings of a half Cannon Bit or a Scatch, you having mounted his back, let your assistant hold him to the post with his head facing it,1684, Thomas de Grey, The Compleat Horse-Man, and Expert Ferrier, 5th edition, page 236: