ungive

verb3

1. •
   To take back something that had been given.

   • "Impossible," Vail said. "She's going to work at one of the prestige films at the end of this month. She's already given notice!" "Well apparently she ungave it. [...]" — 1994
2. •
   (dialect, UK) To melt; thaw.
3. •
   (no longer used) To yield, relax, slacken, give way or loosen.