sabot

The term sabot may have first been introduced into English in a 1607 translation from French: "wooden shoes," readers were informed, are "properly called sabots." The gun-related sense appeared in the mid-1800s with the invention of a wooden gizmo that kept gun shells from shifting in the gun barrel. Apparently, someone thought the device resembled a wooden shoe and named it sabot (with later generations of this device carrying on the name). Another kind of French sabot—a metal "shoe" used to secure rails to railway ties—is said to be the origin of the word sabotage, from workers destroying the sabots during a French railway strike in the early 1900s. The word sabot is probably related to savate, a Middle French word for an old shoe.