Where does “wechselseitig” come from?

wechselseitig (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.

wechselseitig (German): mutual, reciprocal

Definitions

  1. mutual, reciprocal

Ancestry of “wechselseitig”, step by step

wechselseitig 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 Wechsel

StepLanguageWordMeaning
1GermanWechselchange; bill of exchange
2Middle High Germanwëhsel
3Old High Germanwehsal
4Proto-Germanicwihslazchange
5Proto-Indo-Europeanweyk-to separate, to choose; to contain, to envelop;...
6Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...
Every word from Proto-Indo-European yeh₁r-