Where does “beidseitig” come from?

beidseitig (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.

beidseitig (German): bilateral, mutual; on both sides

Definitions

  1. bilateral, mutual; on both sides

Ancestry of “beidseitig”, step by step

beidseitig 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 German beide

StepLanguageWordMeaning
1Germanbeideboth; two
2Middle High Germanbeideboth
3Old High GermanbeideAlternative form of bēde
4Proto-Germanicbai-
Every word from Proto-Indo-European yeh₁r-Every word from German -igEvery word from Proto-Germanic jērą