unback
verbEtymology From un- + back.
1
Rare To remove the back or backing from (something).
- “When you go home,” resumed Josephine, “unback the miniature case and upon the surface opposite the painting you will find these words […]”1896, Ida Worden Wheeler, chapter 10, in Siegfried the Mystic, Boston: Arena Publishing Company, page 109:
2
Obsolete To deprive (a horse) of its rider.
- Her horse againe this Princesse must vnbacke,1599, Henry Petowe, Philochasander and Elanira, London: Thomas Purfoot: