Stiletto

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A stiletto is a slim dagger with a long, narrow blade and a very sharp point, built mainly for stabbing. Its thin, needle-like blade reduces friction so it can enter a body or gaps in armor with a deep thrust. Most stilettos are designed for piercing, not cutting, though some edged examples exist. The term can also describe other narrow blades with little cutting surface, like the U.S. V-42 stiletto. In American English, “stiletto” can even refer to a switchblade with a stiletto- or bayonet-style blade. The word is also used for very thin, pointed features, such as a stiletto heel.

Originating in Italy, the stiletto dates from the late 15th century and likely developed from the rondel dagger or misericorde, both needle-pointed weapons meant primarily for thrusting, though some had cutting edges. Early stilettos often had a one-piece metal handle shaped on a lathe, and the blade was usually a dense, narrow rod with a triangular cross-section, sometimes with other cross-sections as well. The Italian word stiletto comes from stilus, the thin pointed Roman writing tool used to inscribe wax or clay.

The stiletto gained fame in the late Middle Ages as a knight’s secondary weapon. It was designed to finish off a fallen or badly wounded armored opponent. The point could pierce gaps in armor and pass through eye slits in helmets. A mercy strike given to an almost dead opponent helped explain the name miséricorde (mercy).

Over time, a tool called the Gunner’s Stiletto emerged to clear cannon fuse holes, showing how the name spread beyond fighting knives. In Italy, the stiletto became a favored offensive thrusting knife (arma manesca) and was often banned as a treacherous weapon (arma insidiosa) because it was quiet, easily concealed, and deadly in close quarters. The 16th century saw it as a key weapon for assassins, and a 1536 Italian fighting manual by Achille Marozzo includes stiletto techniques.

During the Renaissance, the term came to describe a range of slender thrusting knives similar to the French poignard, many with dagger-like blades but still slim and pointy. Viel shorter blades sometimes had fullers to lighten them. The stiletto remained popular among criminals and political assassins from the 16th through the 19th centuries in places like France, Corsica, and Italy, and it was especially associated with close-quarters fighting.

In Italy, a tradition of stiletto fighting grew, including the Sicilian school of stiletto combat. A skilled user would thrust deep and then twist the blade to create internal damage that might not be visible from the outside. The stiletto spread with Italian immigration to places like New Orleans in the mid-1800s, where gamblers, gangs, and assassins used it. The city even banned selling or displaying stilettos in 1879.

World War I brought a revival of stabbing weapons. Weapons like the French Lebel bayonet was shortened into a stiletto, the French Nail was another locally made version, and the American Mark I trench knife and the M1917 bayonet were produced for trench fighting. The German Nahkampfmesser was a standard issue combat knife in World War I and remained in use in altered forms after.

World War II saw another surge of stiletto-style knives for stealth and assault. The Fairbairn–Sykes fighting knife, designed by William Fairbairn and Eric Sykes, was a double-edged dagger with a long, narrow point optimized for thrusting, though it could slash if sharpened. The U.S. Marine Raider Stiletto and the V-42 stiletto were developed in this era, emphasizing thrusting over cutting. In the 1950s, many folding switchblade knives from Italy were sold as stilettos. These side-opening blades often featured a long, slender blade with a single sabre-ground edge and a hidden, locking mechanism, making them a thrusting weapon when opened. Variants included kris and flat-ground blades.

Today, stilettos and stiletto-inspired knives are still made in various forms. They retain the classic profile—long, thin blade tapering to a needle-like point—emphasizing thrusting over cutting, and they continue to influence many modern folding and fixed-blade designs.