verb (used with object), un·wound, un·wind·ing.
verb (used without object), un·wound, un·wind·ing.
Origin of unwind
verb -winds, -winding or -wound
early 14c., "to undo" (a bandage, wrapping, etc.), from un- (2) + wind (v.). Cf. Old English unwindan, Dutch ontwinden, Old High German intwindan. Refl. sense is recorded from 1740; figurative sense of "to release oneself from tensions, to relax" is recorded from 1938. Related: Unwound; unwinding.