insane etymology

English word insane comes from Latin sanus, Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.)

Detailed word origin of insane

Dictionary entryLanguageDefinition
sanus Latin (lat) (of style) correct, sensible, sober, chaste. Sound in body, healthy. Sound in mind, sane.
ingratus Latin (lat) Thankless. Ungrateful. Unpleasant, disagreeable.
insanus Latin (lat) Mad, insane, demented.
insane English (eng) Causing insanity or madness.. Characterized by insanity or the utmost folly; ridiculous; unpractical. Exhibiting unsoundness or disorder of mind; not sane; mad. Used by, or appropriated to, insane persons.

Words with the same origin as insane

Descendants of sanus
insanity sane sanity