the.com/parlay

means To parlay is to leverage one win, asset, or advantage into a bigger one — either literally rolling a bet and its winnings onto the next wager, or figuratively turning a small success into something far larger.

from From the Italian 'paroli,' the term in the card game faro for letting your stake and its winnings ride on the next turn. The word traveled through French as 'paroli' and reached English in the early 1800s, where it was reshaped into 'parlay' — likely under the pull of 'parley,' the talking-it-out word, which is actually unrelated (that one comes from French 'parler,' to speak). So the gambler's parlay and the negotiator's parley are strangers who happen to look alike.