What does "martingale" mean?
A piece of harness used on a horse to keep it from raising its head above a desired point.
noun, verb ·3 syllables ·Uncommon ·Advanced level
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"If a gambler plays a fair game repeatedly, his payoff over time is a martingale."
"The Russians were both martingaling it—doubling their bets when they lost."
"If a gambler plays a fair game repeatedly, his payoff over time is a martingale."
A piece of harness used on a horse to keep it from raising its head above a desired point.
Common synonyms include: arrest, bellyband, bit, blind, blinders, brake.
If a gambler plays a fair game repeatedly, his payoff over time is a martingale.
From Middle French martingale, from Occitan martegalo, feminine form of martegal, an inhabitant of Martigues, which is from Latin maritima. Alternatively from Spanish almártaga. The meaning in gambling may come from an old usage of "à la martingale" to mean absurdly, foolishly.https://people.math.harvard.edu/~ctm/home/text/class/sem/html/home/notes/martingales/martingales.pdf