Word Origin & History
c.1400, "mental derangement characterized by excitement and delusion," from L.L. mania "insanity, madness," from Gk. mania "madness," related to mainesthai "to rage, go mad," mantis "seer," menos "passion, spirit," all from PIE *men- "to think, to have one's mind aroused, rage, be furious" (see
(n.)). Sense of "fad, craze" is 1689, from Fr. manie. Used since 1500s (in imitation of Gk.) as the second element in compounds expressing particular types of madness (cf. nymphomania, 1775; kleptomania, 1830; megalomania, 1890).