green stuff vs payment

green stuff

noun
  • money 

payment

noun
  • The act of paying. 

  • An instance of that act; a sum of money paid in exchange for goods or services, or the transaction that conveys it. 

  • Antonyms: non-payment, nonpayment 

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