Unwind

Verb

 * 1)  To wind off; to loose or separate; to untwist; to untwine; as, to unwind thread, to unwind a ball of yarn
 * Could you unwind about a foot of ribbon so I can finish the package?
 * 1)  To disentangle
 * 2)  To relax; to chill out; as, to rest and relieve of stress
 * After work, I like to unwind by smoking a pipe while reading the paper.
 * 1)  To be or become unwound; to be capable of being unwound or untwisted.

Thesaurus
calm down, clarify, clear up, collect oneself, compose oneself, cool it, cool off, disembroil, disentangle, disintricate, disinvolve, ease, ease off, ease up, get organized, let down, let up, let up on, loosen up, ravel, relax, simmer down, slack, slack off, slack up, slacken, slow down, sober down, sort out, take it easy, unbend, unbraid, unclutter, uncoil, unfold, unfurl, unknot, unlax, unmix, unravel, unreel, unroll, unscramble, unsnarl, untangle, unthread, untwine, untwist, unweave