1560s, "of the French middle class," from Fr. bourgeois, from O.Fr. burgeis, borjois "town dweller" (see bourgeoisie). Sense of "socially or aesthetically conventional" is from 1764; in communist and socialist writing, as a noun, "a capitalist" (1883).
"It is better to be a good ordinary bourgeois than a bad ordinary bohemian." [Aldous Huxley, 1930]