Main Entry: id·i·ot

Pronunciation: \ˈi-dē-ət\

Function: noun

Etymology: Middle English, from Anglo-French ydiote, from Latin idiota ignorant person, from Greek idiōtēs one in a private station, layman, ignorant person, from idios one's own, private; akin to Latin suus one's own — more at suicide

Date: 14th century

1usually offensive : a person affected with extreme mental retardation
2 : a foolish or stupid person

— idiot adjective