ends of anything (e.g. hub-cap) from mid-15c. Meaning "contraceptive device" is first recorded 1916. "Cap-shaped piece of copper lined with gunpowder and used to ignite a gun" is c.1826; extended to paper version used in toy pistols, 1872. The L.L. word apparently originally meant "a woman's head-covering," but the sense transferred to "hood of a cloak," then to "cloak" itself, though the various senses co-existed. O.E. took in two forms of the L.L. word, one meaning "head-covering," the other "ecclesiastical dress" (see
cape (1)). In most Romance languages, a dim. of L.L. cappa has become the usual word for "head-covering" (cf. Fr. chapeau).