δύο (Ancient Greek)
Where does "δύο" come from?
The Ancient Greek word 'dúo' (δύο) descends from the Proto-Hellenic '*dúwo', which ultimately reaches back to the Proto-Indo-European base '*dwóh₁' meaning 'two'. This ancient root word is remarkably stable, serving as the ancestor to cognates across many languages, including the Latin 'duo' and the English 'two'.
Full etymology tree
- δύο (dúo) (Ancient Greek), 'two'
- inherited *dúwo (Proto-Hellenic), 'two'
- inherited *duwó (Proto-Indo-European)
- inherited *dwóh₁ (Proto-Indo-European), 'two'
- inherited *duwó (Proto-Indo-European)
- inherited *dúwo (Proto-Hellenic), 'two'
Ancestors
- *dúwo (Proto-Hellenic)
Cognates and doublets
- two (English)
- duo (Latin)
- երկու (Old Armenian)
- twa (Old English)
- द्व (Sanskrit)
Descendants and derived words
- δύο (Greek)
- δι- (Ancient Greek)
- δι- (Ancient Greek)
- δυοκαίδεκα (Ancient Greek)
- δώδεκα (Ancient Greek)
- δύο (Greek)
Updated July 2026
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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris