unlace

English

From un- +‎ lace.

unlace (third-person singular simple present unlaces, present participle unlacing, simple past and past participle unlaced)

(transitive) To remove the knot from laces; to undo laces.
Unlace your shoes before taking them off.
- 1938, Norman Lindsay, Age of Consent, 1st Australian edition, Sydney, N.S.W.: Ure Smith, published 1962, →OCLC, page 139:
  Bradly tapped the ashes from his pipe, signifying a leisured interlude over. "Time to get a move on," he said, and began to unlace his boots for wading.
(transitive) To loosen the clothing of (a person).
(transitive) To remove (film) from a projector.