UNLOOSEN

unloose, unloosen

(verb) loosen the ties of; “unloose your sneakers”

free, liberate, release, unloose, unloosen, loose

(verb) grant freedom to; free from confinement

Source: WordNet® 3.1

Etymology

Verb

unloosen (third-person singular simple present unloosens, present participle unloosening, simple past and past participle unloosened)

To unloose; to loosen.

Source: Wiktionary

Un*loos"en, v. t. Etym: [1st pref. un- (intensive) + loosen.]

Definition: To loosen; to unloose.

Source: Webster’s Unabridged Dictionary 1913 Edition