untwine

verb3

1. •
   To untwist the strands of (something entwined).

   • The rope must be then untwined and the middle of each strand laid across the top and stitched down along the pencil line, half the length falling on one side, half on the other. — 1902
2. •
   To free (one thing that is entwined with another), disentangle, extricate.

   • She then untwined the snake from her body, and held it by the tail high above her. — 1864
3. •
   To become untwisted or disentangled.

   • As the tangled mass of men untwined, following the blast of the whistle, Sage heard Stone calling in his ear […] — 1912