a. [f. JACK sb.2 + -ED2.]
† a. Clothed in or armed with a jack (see JACK sb.2 1). Obs. b. Hardened and thickened as leather for jack-boots.
1461. J. Paston, in P. Lett., II. 36. The peple was jakkyd and saletted, and riottously disposid.
17[?]. ? E. Ward, Welsh Monster, 3. Their brown Skins, from Knee to Foot, Are jackd like Troopers stubborn Boot.
1841. G. P. R. James, Brigand, xix. Dagger or sword point will not well make its way through the jacked doublings of those hides. Ibid. (1849), Woodman, vii. Made of double jacked leather.