backbreaker vs recreation

backbreaker

noun
  • A strenuous and exhausting task, typically involving physical effort. 

recreation

noun
  • Any activity, such as play, that amuses, diverts or stimulates. 

  • The result of this process. 

  • The process of creating something again. 

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