Where does “zwanzig” come from?

zwanzig (German) comes from German Seite, from German -ig, from German -jährig, from German Jahr, from Middle High German jār, from Old High German jār, from Proto-West Germanic jār, from Proto-Germanic jērą — year.

zwanzig (German): twenty

Definitions

  1. twenty

Ancestry of “zwanzig”, step by step

zwanzig traces back through two separate lines of ancestry.

via German Seite

StepLanguageWordMeaning
1GermanSeiteside; face, side, surface of any...
2German-ig-y; forms adjectives from nouns; forms adjectives...
3German-jährigyears old; years lasting
4GermanJahryear
5Middle High Germanjāryear
6Old High Germanjāryear
7Proto-West Germanicjāryear
8Proto-Germanicjērąyear; name of the J-rune
9Proto-Indo-Europeanyeh₁r-year

via Middle High German zweinzec

StepLanguageWordMeaning
1Middle High Germanzweinzec
2Old High Germanzweinzugtwenty
3Proto-Germanictwai tigiwiztwenty
4Proto-Germanictwaitwo
5Proto-Indo-Europeandwóh₁two

Words derived from “zwanzig

Every word from Proto-Indo-European yeh₁r-