front money vs prepayment

front money

noun
  • Money paid for goods or services in advance, sometimes through an intermediary. 

  • Capital which is required in order to establish a business and begin operations. 

prepayment

noun
  • A payment in advance. 

  • An asset recognized in respect an expense incurred in a period for which the benefit will be received in a future period. 

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