parlay

par·lay  (pärl, -l)

tr.v. par·layed, par·lay·ing, par·lays

1. To bet (an original wager and its winnings) on a subsequent event.

2. To maneuver (an asset) to great advantage: parlayed some small investments into a large fortune.

n.

A bet comprising the sum of a prior wager plus its winnings or a series of bets made in such a manner.

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[Alteration of paroli, staking of double the sum staked before in faro, from French, from obsolete Italian, probably from Italian parare, to place a bet, from Latin parre, to prepare; see pare.]

Thesaurus

Noun	1.	parlay - a series of wagers in which the winnings from one wager are used as a stake for the subsequent wagers wager, bet - the act of gambling; "he did it on a bet"
Verb	1.	parlay - stake winnings from one bet on a subsequent wager double up bet on, gage, game, stake, punt, back - place a bet on; "Which horse are you backing?"; "I'm betting on the new horse"