accelerated vs prepayment

accelerated

adj
  • Moving or progressing faster than is usual. 

  • Happening sooner than expected. 

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 accelerated and prepayment occurred in a corpus of books? (source: Google Ngram Viewer )