accumulator vs parlay

accumulator

noun
  • A collective bet on successive events, with both stake and winnings being carried forward to accumulate progressively. 

  • A derivative contract under which the seller commits to sell shares of an underlying security at a certain strike price, which the buyer is obligated to buy. 

  • A system of elastic springs for relieving the strain upon a rope, as in deep-sea dredging. 

  • A register or variable used for holding the intermediate results of a computation or data transfer. 

  • A one way membership function. 

  • One who, or that which, accumulates. 

  • A container which stores hydraulic power for release, in the form of a pressurized fluid (often suspended within a larger tank of fluid under pressure). 

  • One who takes two higher degrees simultaneously, to reduce their length of study. 

  • A vessel containing pressurized hot water ready for release as steam. 

  • A wet-cell storage battery. 

parlay

noun
  • A bet or series of bets where the stake and winnings are cumulatively carried forward; an accumulator. 

verb
  • To carry forward the stake and winnings from a bet on to a subsequent wager or series of wagers. 

  • To convert (a situation, thing, etc.) into something better. 

  • To increase (an asset, money, etc.) by gambling or investing in a daring manner. 

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