unu (Esperanto)
Where does "unu" come from?
The Esperanto word 'unu' traces its lineage back to the Latin 'ūnus,' meaning one or single. This root descends from the Proto-Italic 'oinos' and ultimately the Proto-Indo-European '*h₁óynos,' an ancient term that also gave rise to the English word 'one.' Over thousands of years, this fundamental concept of unity has been preserved across diverse language families.
Full etymology tree
- unu (Esperanto), 'one (1)'
- inherited ūnus (Latin), 'one, single'
- inherited oinos (Latin), 'one'
- inherited *oinos (Proto-Italic), 'one'
- inherited *h₁óynos (Proto-Indo-European), 'one'
- derived *éy (Proto-Indo-European)
- inherited *h₁óynos (Proto-Indo-European), 'one'
- inherited *oinos (Proto-Italic), 'one'
- inherited oinos (Latin), 'one'
- inherited ūnus (Latin), 'one, single'
Ancestors
- unus (Latin)
Descendants and derived words
- unuo (Esperanto)
Updated July 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris