Where does “Dreifachblindstudie” come from?

Dreifachblindstudie (German) comes from German Dreifach, 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.

Dreifachblindstudie (German): triple-blind experiment, triple-blinded...

Definitions

  1. triple-blind experiment, triple-blinded...

Ancestry of “Dreifachblindstudie”, step by step

Dreifachblindstudie traces back through two separate lines of ancestry.

via German Dreifach

StepLanguageWordMeaning
1GermanDreifachtriple (made up of three matching or complementary elements)
2German-fach-fold
3Middle High Germanvach-fold
4Old High Germanfahwall
5Proto-Germanic*fak
6Proto-GermanicfakąAn enclosed or defined space; division;...
7Proto-Indo-Europeanpeh₂ǵ-to attach

via German Blindstudie

StepLanguageWordMeaning
1GermanBlindstudieblind experiment, blinded experiment
Every word from Proto-Indo-European peh₂ǵ-Every word from Proto-Germanic fakąEvery word from German -fach