coinage vs old saw

coinage

noun
  • The process of creating something new. 

  • The creation of new words, neologizing. 

  • Something which has been made or invented, especially a coined word; a neologism. 

  • Coins taken collectively; currency. 

  • The process of coining money. 

old saw

noun
  • A cliché, saying, or overused expression; especially a proverb or maxim. 

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