convenience vs treasure

convenience

noun
  • Any object that makes life more convenient; a helpful item. 

  • The quality of being convenient. 

  • A convenient time. 

verb
  • To make convenient 

treasure

noun
  • Anything greatly valued. 

  • A term of endearment. 

  • A collection of valuable things; accumulated wealth; a stock of money, jewels, etc. 

verb
  • To store or stow in a safe place. 

  • To consider to be precious; to value highly. 

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