ˈidēəd.ˌizəm, -ēəˌti- noun
( -s )
Etymology: in sense 1, from Middle French idiotisme, from Latin idiotismus common or vulgar manner of speaking, from Greek idiōtismos way of a common man, manner of speech of a common man, from idiōtēs common man + -ismos -ism; in sense 2, from idiot (I) + -ism — more at idiot
1.
a. obsolete : idiom 1
b. : idiom 2
2. archaic : idiocy