Where does “gjensidighet” come from?

gjensidighet (Norwegian Bokmål) comes from Norwegian Bokmål gjensidig, from German gegenseitig, from German Gegenseite, from German Seite, from German -ig, from German -jährig, from German Jahr, from Middle High German jār — year.

gjensidighet (Norwegian Bokmål): reciprocity, reciprocality

Definitions

  1. reciprocity, reciprocality

Ancestry of “gjensidighet”, step by step

gjensidighet traces back through two separate lines of ancestry.

via Norwegian Bokmål gjensidig

StepLanguageWordMeaning
1Norwegian Bokmålgjensidigmutual, reciprocal
2Germangegenseitigmutual, reciprocal; opposite
3GermanGegenseiteopposite side
4GermanSeiteside; face, side, surface of any...
5German-ig-y; forms adjectives from nouns; forms adjectives...
6German-jährigyears old; years lasting
7GermanJahryear
8Middle High Germanjāryear
9Old High Germanjāryear
10Proto-West Germanicjāryear
11Proto-Germanicjērąyear; name of the J-rune
12Proto-Indo-Europeanyeh₁r-year

via Norwegian Bokmål het

StepLanguageWordMeaning
1Norwegian Bokmålhethot; simple past of hete
2Old Norseheitrhot
3Proto-Germanichaitazhot
4Proto-Indo-European*keHy-to heat
Every word from Proto-Indo-European yeh₁r-
gjensidighet — Etymology, Origin & Word History | Etymology Explorer