martingale

noun
mar·​tin·​gale | \ˈmär-tᵊn-ˌgāl, -tiŋ-\

Definition of martingale 

1 : a device for steadying a horse's head or checking its upward movement that typically consists of a strap fastened to the girth, passing between the forelegs, and bifurcating to end in two rings through which the reins pass

2a : a lower stay of rope or chain for the jibboom used to sustain the strain of the forestays and fastened to or rove through the dolphin striker

b : dolphin striker

3 : any of several systems of betting in which a player increases the stake usually by doubling each time a bet is lost

Illustration of martingale

Illustration of martingale

martingale 1

First Known Use of martingale

1584, in the meaning defined at sense 1

History and Etymology for martingale

Middle French

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The first known use of martingale was in 1584

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