Folie

n. (From French) psychological disorder of mind or emotion; impartial and old term for mental illness or insanity

Noun
1. (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness
(synonym) mental disorder, mental disturbance, disturbance, psychological disorder
(hypernym) disorder, upset
(hyponym) anxiety disorder
(classification) psychiatry, psychopathology, psychological medicine

n. foil, thin metal sheets, leaf, layer, metal plating

n. madness, craziness, folly; craze things, insanity, extravaganza

v. foliate, produce leaves; separate into thin layers; decorate with leaves; number pages