convenience vs prudence

convenience

noun
  • The quality of being convenient. 

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

  • A convenient time. 

verb
  • To make convenient 

prudence

noun
  • The quality or state of being prudent 

  • economy; frugality. 

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