deh₂-
“to divide, share”Source of Greek daiesthai, English demon, time, tide
Root for dividing or sharing out, yielding Greek daimon and English time, tide, demon.
Discussion
The PIE root *deh₂- (to divide, to share, to distribute) produced one of the most theologically misunderstood word families in the Western vocabulary — the line from divine apportionment to the Greek daimon to the Christian demon, a semantic journey from neutral spirit to malevolent fiend.
Greek daímon (δαίμων, "spirit, divinity, one's personal fate") descends from this root through the concept of "the divider" — the supernatural agent that allots fortune. In Homer and Hesiod, a daimon was neither good nor evil but a divine power that distributed fate. Socrates famously spoke of his personal daimonion — an inner voice that warned him away from wrong actions. The word carried no negative connotation in classical Greek.
The Christian transformation was decisive: early Church writers reinterpreted all pagan daimones as fallen angels, and the word demon (Latin daemon, from Greek daímon) acquired its exclusively evil sense. English demon, demonic, and demonology all carry this post-classical narrowing. The positive classical sense survives only in the learned form daimon (used by scholars to distinguish the Greek concept from the Christian one) and in the name Eudaimonia (eu- + daimōn, "good spirit" — Aristotle's term for human flourishing, the state of being well-apportioned by fate).
Greek daíesthai (to divide) and the related dáis (a portion, a meal — food divided among guests) preserve the root's original distributing sense.
The PIE root *deh₂- also produced Latin -dere in some compound verbs and may connect to the broader vocabulary of division found in *deh₂-i- (time, a divided portion — possibly underlying Latin diēs "day" through a different derivation, though this is debated; compare *dyew- for the standard day/sky root).
The root's semantic arc from "divide" to "divine spirit" to "evil demon" is one of the starkest examples of religious semantic change in the IE vocabulary. The daimon began as a neutral cosmic distributor and ended as a creature of hell — its reputation destroyed not by phonological change but by theological revolution.