Where does “unus et viginti” come from?

unus et viginti (Latin) comes from Latin et, from Proto-Indo-European éti, from Proto-Indo-European h₁é, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

unus et viginti (Latin): twenty-one; 21

Definitions

  1. twenty-one; 21

Ancestry of “unus et viginti”, step by step

unus et viginti traces back through 3 separate lines of ancestry.

via Latin et

StepLanguageWordMeaning
1Latinetand; plus; though, even if
2Proto-Indo-Europeanétibeyond; over
3Proto-Indo-Europeanh₁éand, then
4Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

via Latin ūnus

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

via Latin vīgintī

StepLanguageWordMeaning
1Latinvīgintītwenty
2Latinquīnquefive; 5
3Proto-Italickʷenkʷefive
4Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European ǵʰeEvery word from Proto-Indo-European h₁éEvery word from Proto-Indo-European éti
unus et viginti — Etymology, Origin & Word History | Etymology Explorer