Where does “Jahrestag” come from?

Jahrestag (German) comes from German Tag, from Middle High German tag, from Old High German tag, from Proto-West Germanic dag, from Proto-Germanic dagaz, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.

Jahrestag (German): anniversary

Definitions

  1. anniversary

Ancestry of “Jahrestag”, step by step

Jahrestag traces back through two separate lines of ancestry.

via German Tag

StepLanguageWordMeaning
1GermanTagday; day, daylight; day, daylight, light
2Middle High Germantagday; age, lifetime; convention, congress
3Old High Germantagday
4Proto-West Germanicdagday
5Proto-Germanicdagazday; name of the D-rune
6Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot

via German Jahr

StepLanguageWordMeaning
1GermanJahryear
2Middle High Germanjāryear
3Old High Germanjāryear
4Proto-West Germanicjāryear
5Proto-Germanicjērąyear; name of the J-rune
6Proto-Indo-Europeanyeh₁r-year
Every word from Proto-Indo-European dʰegʷʰ- →Every word from Proto-Germanic dagaz →Every word from Proto-West Germanic dag →