unhang

verb2

1. •
   To take down something (such as a picture) from a hanging position
2. •
   Hypothetically, to undo the execution of (a person) by hanging.

   • But, having hung him, you cannot unhang him. With all your liability to err, you dare to take a step, which, if wrong at all, is infinitely so, because irretrievable. — 1844