bank account vs earnest money

bank account

noun
  • A fund, held by a bank in a contractual arrangement between the bank and the owner of the fund, a customer of the bank, into which they can deposit and from which they can withdraw money. 

earnest money

noun
  • Money paid as a deposit to show intent to buy or to reserve an item to be purchased; especially, money accompanying an offer to buy real estate. 

How often have the words bank account and earnest money occurred in a corpus of books? (source: Google Ngram Viewer )