Hesychasm

The origin of the term hesychasmos, and of the related terms hesychastes, hesychia and hesychazo, is not entirely certain. According to the entries in Lampe's A Patristic Greek Lexicon, the basic terms hesychia and hesychazo appear as early as the 4th Century in such Fathers as St John Chrysostom and the Cappadocians. The terms also appear in the same period in Evagrius Pontikos (c.345?399), who although he is writing in Egypt is out of the circle of the Cappadocians, and in the Sayings of the Desert Fathers.