coinage vs green stuff

coinage

noun
  • The process of coining money. 

  • 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. 

green stuff

noun
  • money 

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