uncross

verb2

1. •
   To move something, especially one's arms or legs, from a crossed position.

   • Then she fell back on the altar and her fingers dangled loosely on its edge, her feet uncrossed and lay beside each other. — 1965
2. •
   To undo the crossing or traversal of (something).

   • I want nothing more than to run through the crowd of people and throw myself into his arms, but I can't. You can't rewrite the past, and once lines have been crossed, you can't uncross them. — 2014