The Horse World, and Elsewhere
Awareness of the outside world. Tired from lesson. I got nothing.
~~~

A leather martingale to display this year’s horse brass. Cox The Saddler: Leather martingale to take 1 horse brass. [NHBS 2021]
I was surprised to find out the leather widget was called a martingale. All right-thinking people know a martingale is a piece of horse tack, either standing or running. Also an Irish martingale if one is studying for a USPC rating. The Society Of Master Saddlers: Different Types of Martingale
Little did I know.
A martingale is …
… an adjustable part of a dog collar.
… a similar adjustable widget on the back of a coat or dress.
… a gambling system.
… a probability theory.
… a way to keep track of your your sword. fencing.net: Using the wrist strap or Martingale
… “A stay running from the end of the jib-boom to the dolphin striker, which holds the jib-boom down against the pull of the fore topgallant mast stay.” The Age Of Sail: Martingale
… an obsolete term for a twofer, or occasionally a threefer in the theatrical lighting industry. Wiki: Martingale
… a sewing shop in Bothell WA. ShopMartingale
… a restaurant & bar in Portsmouth NH. Martingale Wharf
… a name with a family crest. House of Names: Martingale History, Family Crest & Coats of Arms
… a street in Eugene OR.
… a road in Schaumburg IL and Schwenksville PA.
… an avenue in Mooresville NC.
… a close in Cape Town, South Africa.
… a PDF. Electronic Journn@l for History of Probability and Statistics: The Origins of the Word “Martingale”. Mansuy 2005.
and
… a precis of the preceding, An Ergodic Walk: The history of the martingale, Sarwate, 2012.

Stay safe. Stay sane.
Katherine
Who knew?
Interesting.Funny how so many meanings and you only know the one that applies to your use of it.
The underlying theory for about 3/4 seems to be a strap of some sort.