Etymograph

English

idiotism

From idiot + -ism.

A compound of idiot + -ism

Proto-Indo-European *swé ‘self’

…

Ancient Greek ἰδιώτης ‘a private citizen’

Latin idiota ‘idiot’

Old French idiote

Middle English idiote

English idiot

Another origin of idiotism

  1. Latinc. 75 BCE–200 CEidiotismus
  2. Englishtodayidiotism

Today it means

noun Very severe mental retardation.

Language periods are conventional ranges, not dates for this word.

Etymograph / idiotism