1657, from Gk.
oxymoron, noun use of neut. of
oxymoros (adj.) "pointedly foolish," from
oxys "sharp" (see
acrid) +
moros "stupid." Rhetorical figure by which contradictory terms are conjoined so as to give point to the statement or expression; the word itself is an illustration of the thing. Now often used loosely to mean "contradiction in terms."