unconcede
verbEtymology From un- + concede.
1
To retract a prior concession.
- Sensing a lifeline, Mr Gore ordered Mr Daley to phone Don Evans, his counterpart in Austin, and warn him that the Vice-President was about to "unconcede".2000 November 9, Toby Harnden, Ben Fenton, “One amazing night on the rollercoaster”, in The Telegraph: