depository vs earnest money

depository

noun
  • A trustee; a depositary. 

  • A place where something is deposited, as for storage, safekeeping, or preservation; a repository. 

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 depository and earnest money occurred in a corpus of books? (source: Google Ngram Viewer )