Unstroy 

To repair an undestroyed object.

I unstroyed the priceless vase.

Unstroy by PwnageBot_G August 11, 2006

Unstrop 

The process of ceasing to exist in a state of stroppage.

Paul was able to unstrop after following a bad day at work when he discovered he had free porn through his satellite TV.

Unstrop by Gavin Anderson June 12, 2004