dare vs square off

dare

verb
  • To have enough courage to meet or do something, go somewhere, etc.; to face up to 

  • To terrify; to daunt. 

  • To have enough courage (to do something). 

  • To catch (larks) by producing terror through the use of mirrors, scarlet cloth, a hawk, etc., so that they lie still till a net is thrown over them. 

  • To defy or challenge (someone to do something) 

noun
  • The quality of daring; venturesomeness; boldness. 

  • A challenge to prove courage. 

  • In the game truth or dare, the choice to perform a dare set by the other players. 

  • A small fish, the dace 

  • Defiance; challenge. 

square off

verb
  • To get ready for a confrontation (debate, argument, fight). 

  • To increase the boxiness of (a design). 

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