Where does “jahrzehntelang” come from?

jahrzehntelang (German) comes from German lang, from Middle High German lanc, from Old High German lang, from Proto-West Germanic lang, from Proto-Germanic langaz, from Proto-Indo-European dlongʰos — long.

jahrzehntelang (German): lasting for decades, decadeslong

Definitions

  1. lasting for decades, decadeslong

Ancestry of “jahrzehntelang”, step by step

jahrzehntelang traces back through two separate lines of ancestry.

via German lang

StepLanguageWordMeaning
1Germanlanglong; lengthy; tall; many
2Middle High Germanlanc—
3Old High Germanlanglong
4Proto-West Germaniclanglong
5Proto-Germaniclangazlong
6Proto-Indo-Europeandlongʰoslong

via German Jahrzehnte

StepLanguageWordMeaning
1GermanJahrzehnteplural of Jahrzehnt "decades"; decades
Every word from Proto-Indo-European dlongʰos →Every word from Proto-Germanic langaz →Every word from Proto-West Germanic lang →