English
eo-
Eo- comes from Ancient Greek ἠώς ‘dawn’, and goes back to Proto-Indo-European *h₂ews-.
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂ews-‘to dawn’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*h₂éwsōs‘dawn’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*auhṓs‘dawn’reconstructed
- Ancient Greekc. 800–300 BCEἠώςēṓs‘dawn’
- Englishtodayeo-
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂ews-‘to dawn’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*h₂éwsōs‘dawn’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*auhṓs‘dawn’reconstructed
- Ancient Greekc. 800–300 BCEἠώςēṓs‘dawn’
- Englishtodayeo-
Linked words
through Proto-Indo-European *h₂ews- ‘to dawn’
or, air, east, plane, aerial, exhaust, malaria, aura, aria, aero, aureus, aurelia, austral, oriel, oriole, aurum, 63 more
through Proto-Indo-European *h₂éwsōs ‘dawn’
Today it means
prefix earliest
Language periods are conventional ranges, not dates for this word.