entirety vs everything

entirety

noun
  • The whole; the complete or amount. 

everything

noun
  • everything 

pron
  • Considerable effort. 

  • A state of well-being (from all parts of the whole). 

  • All the things under discussion. 

  • The most important thing. 

  • Many or most things. 

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