Etymology Explorer › Latin

Where does “unus” come from?

unus (Latin) comes from Old Latin oinos, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

Ancestry of “unus”, step by step

StepLanguageWordMeaning
1Old Latinoinosone
2Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
3Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European óynos →