Stiletto U.S. V-42 stiletto, while in American English usage, the name "stiletto" can also refer to a switchblade knife with a stiletto- or bayonet-type blade design. The term in plural "stilettos", is also used as slang for a long, thin, high heel (stiletto heel) for certain boots and shoes, usually worn by women. First developed in Italy, the stiletto dates from the late 15th century, and is thought to be a development of the rondel dagger or "misericordia", a needle-pointed weapon with a narrow blade designed primarily for thrusting, though possessing cutting edges. Early stilettos normally used a one-piece cast-metal handle
Stiletto heel popularity in the 1950s, they reached their most refined shape in the early 1960s, when the toes of the shoes which bore them became as slender and elongated as the stiletto heels themselves. As a result of the overall sharpness of outline, it was customary for women to refer to the whole shoe as a "stiletto", not just the heel, via synecdoche ("pars pro toto"). Although they officially faded from the scene after the Beatle era began, their popularity continued at street level, and women stubbornly refused to give them up even after they could no longer readily find them