Where does “ottantuno” come from?

ottantuno (Italian) comes from Italian uno, from Latin ūnus, from Old Latin oinos, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

ottantuno (Italian): eighty-one

Definitions

  1. eighty-one

Ancestry of “ottantuno”, step by step

ottantuno traces back through two separate lines of ancestry.

via Italian uno

StepLanguageWordMeaning
1Italianunoone; an, a; someone, a person
2Latinūnusone, single
3Old Latinoinosone
4Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
5Proto-Indo-Europeanóynosone; single

via Italian ottanta

StepLanguageWordMeaning
1Italianottantaeighty
2Latinoctāgintāeighty; 80
3Proto-Indo-Europeanoktōḱomt
4Proto-Indo-Europeanoḱto(w)-dḱomteight-ten
Every word from Proto-Indo-European óynos