один (Ukrainian)
Where does "один" come from?
The Ukrainian word 'один' traces its roots back to the Proto-Indo-European *óynos, expressing the concept of 'one' or 'single.' It evolved into Proto-Slavic as *edinъ, eventually passing through Old East Slavic and Old Ruthenian to arrive at its modern form. This long history highlights a deep linguistic connection shared with other Indo-European languages, including Baltic relatives like Lithuanian vi̇́enas.
Full etymology tree
- один (Ukrainian), 'one (1)'
- inherited оди́нъ (Old Ruthenian), 'one (1)'
- inherited *edìnъ (Proto-Slavic), 'one'
- inherited *edīˀnas (Proto-Balto-Slavic)
- compound *h₁edʰ- (Proto-Indo-European)
- compound *h₁iHnos (Proto-Indo-European)
- derived *h₁óynos (Proto-Indo-European), 'one'
- inherited *edīˀnas (Proto-Balto-Slavic)
- inherited *edìnъ (Proto-Slavic), 'one'
- inherited оди́нъ (Old Ruthenian), 'one (1)'
Ancestors
- одинъ (Old Ruthenian)
- *edinъ (Proto-Slavic)
Updated July 2026
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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris