break-off vs endurance

break-off

noun
  • That which breaks off, or is broken off 

  • A break, discontinuance, or interruption 

  • The first shot in a game of snooker or other cue-game 

verb
  • To play the first shot in a game of snooker 

endurance

noun
  • The length of time that a ship's rations will supply 

  • The measure of a person's stamina or persistence. 

  • Ability to endure hardship. 

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