doi (Romanian)
Where does "doi" come from?
The Romanian word 'doi' traces its ancient roots back to the Proto-Indo-European *dwóh₁, a number that evolved through Proto-Italic and Latin as 'duo'. It eventually shifted into a Vulgar Latin form, *duī, influenced by the grammatical patterns of other plurals. This same development appears in other Romance languages, highlighting a shared linguistic path from Rome to the modern Romanian language.
Full etymology tree
- doi (Romanian), 'two'
- inherited *duī (Vulgar Latin)
- inherited duo (Latin), 'two; 2'
- inherited *duō (Proto-Italic), 'two'
- inherited *dwóh₁ (Proto-Indo-European), 'two'
- inherited *duō (Proto-Italic), 'two'
- inherited duo (Latin), 'two; 2'
- inherited *duī (Vulgar Latin)
Ancestors
- duo (Latin)
- *duō (Proto-Italic)
- *dwóh₁ (Proto-Indo-European)
Cognates and doublets
- doi (Friulian)
- due (Italian)
- dui (Old French)
- dui (Sicilian)
Descendants and derived words
- doilea (Romanian)
- douăzeci (Romanian)
Updated July 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris