Where does “dreifach” come from?

dreifach (German) comes from German -fach, from Middle High German vach, from Old High German fah, from Proto-Germanic *fak, from Proto-Germanic faką, from Proto-Indo-European peh₂ǵ- — to attach.

dreifach (German): triple

Definitions

  1. triple

Ancestry of “dreifach”, step by step

StepLanguageWordMeaning
1German-fach-fold
2Middle High Germanvach-fold
3Old High Germanfahwall
4Proto-Germanic*fak—
5Proto-GermanicfakąAn enclosed or defined space; division;...
6Proto-Indo-Europeanpeh₂ǵ-to attach
Every word from Proto-Indo-European peh₂ǵ- →Every word from Proto-Germanic faką →Every word from German -fach →