convenience vs facilitate

convenience

verb
  • To make convenient 

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

  • The quality of being convenient. 

  • A convenient time. 

facilitate

verb
  • To make easy or easier. 

  • To preside over (a meeting, a seminar). 

  • To help bring about. 

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