backbreaker vs trying

backbreaker

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

trying

noun
  • The act by which one tries something; an attempt. 

adj
  • Difficult to endure; arduous. 

  • Irritating, stressful or bothersome. 

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