overwin vs score off

overwin

verb
  • To overcome; gain one's point; exceed. 

noun
  • The win or winning of a game. 

score off

verb
  • To defeat (especially in an argument), get the better of, achieve a success over, gain an advantage or win points over, make a point to the detriment or at the expense of, make appear foolish. Sometimes with particle on (someone). 

  • Used other than figuratively or idiomatically: see score, off. To score from. 

  • To delete or remove (especially from a list); to score out, strike out or strike off, cross out or cross off; to draw a line through. 

How often have the words overwin and score off occurred in a corpus of books? (source: Google Ngram Viewer )