عَتَهٌ

[see 1, first sentence, where it is mentioned as a verbal noun]. العَتَهُ is An evil affection, of essential origin, necessarily occasioning unsoundness in the intellect; so that the person affected therewith becomes confused in intellect; and therefore some of his speech resembles that of the intelligent; and some, that of the possessed, or mad: it differs from السَّفَهُ; for this does not resemble possession, or madness. (KT.)