convenience vs triviality

convenience

noun
  • The quality of being convenient. 

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

  • A convenient time. 

verb
  • To make convenient 

triviality

noun
  • The quality of being trivial or unimportant. 

  • Something which is trivial or unimportant. 

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