Daemon is the Latin word for the Ancient Greek daimon (δαίμων: "god", "godlike", "power", "fate"), which originally referred to a lesser deity or guiding spirit; the daemons of ancient Greek religion and mythology and of later Hellenistic religion and philosophy.
A tradition of Greek thought which found agreement in the mind of Plato,
was of a daimon which existed within a person from their birth, and
that each individual was obtained by a singular daimon prior to their
Daemons scarcely figure in Greek mythology or Greek art: they are felt, but their unseen presence can only be presume.