Etymology

hiero-

Today it means: Holy, sacred. Full definition →

Ancient Greek ἱερο- (hiero-) ← Proto-Hellenic *iherós ← Proto-Indo-European *ish₁rós
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The story

  1. Proto-Indo-European*ish₁rós
  2. Proto-Hellenic*iherós
  3. Ancient Greekῑ̆̔ερός (hī̆erós)
  4. Ancient Greekἱερο- (hiero-)
  5. English todayhiero-

From Ancient Greek ἱερο- (hiero-), from ἱερός (hierós, “sacred, holy”).

Etymology from Wiktionary, CC BY-SA 4.0.