Definify.com

Webster 1913 Edition

Verb.

[1st pref.

un-

boot

To take off the boots from.

unboot ‎(third-person singular simple present unboots, present participle unbooting, simple past and past participle unbooted)

(transitive) To take off the boots from.
(transitive) To remove a wheel clamp from
- 2009, Charles Allen Gramlich, Write with Fire: Thoughts on the Craft of Writing - Page 100:
  After waiting nearly an hour for the campus police to unboot my car, I get home from work to find that UPS has delivered the new monitor for my computer.