1795 W. Felton II. (Gloss.) 239 Wither Strap, a part of the harness which goes round the withers of the horse to hold up the collar.
1886 Sept. 299 Many of them had open kidney-sores and wither-galls.
1963 E. H. Edwards xv. 112 Numnahs and wither pads are used in conjunction with saddles.
1976 3 Dec. 52 (advt.) The John Ayres New Zealand Rug... Featuring a sheepskin wither pad.