desserrer

Etymology
From.

Verb

 * 1)  to loosen (knot, belt, etc.)
 * 2)  to unclench (teeth); relax (grip); release (brakes)
 * 3)  to space out
 * 4)  to ease, relax
 * 5)  to come loose; to slacken
 * 1)  to space out
 * 2)  to ease, relax
 * 3)  to come loose; to slacken