"man of the world; citizen of the world, one who is cosmopolitan in ideas or life," 1610s, from Latinized form of Greek kosmopolites "citizen of the world," from kosmos "world" (see cosmos) + polites "citizen," from polis "city" (see polis). In common use 17c. in a neutral sense; it faded in 18c. but was revived from c. 1800 with a tinge of reproachfulness (opposed to patriot).
updated on April 04, 2018