Home › Words › S › suicismsuicismsuicism means selfishness; egoism.EtymologyFrom Latin suus (“one's own”) + -ism.nounSelfishness; egoism.e.g.“This Peece, or Schisme of Suicisme, and Selfishnesse, hath spawned most of the Heresies and Schismes, that are abroad in the World.” — 1654, Richard Whitlock, Zootomia; Or, Observations on the Present Manners of the English:Suicide.Definitions & examples from Wiktionary (CC BY-SA 3.0).