Word Origin & History
Marxist (n.)
1886, "devotee of the teachings of Marx," from Fr. marxiste, from Karl Marx (1818-83), Ger. political theorist. The adj. is attested from 1897, as is Marxism. The adj. Marxian (1940) sometimes is used (e.g. by Groucho) to distinguish the U.S. comedic team from the Ger. political philosopher.