Where does “fackidiot” come from?

fackidiot (Swedish) comes from Swedish fack, 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.

fackidiot (Swedish): a fachidiot (someone ignorant outside their speciality)

Definitions

  1. a fachidiot (someone ignorant outside their speciality)

Ancestry of “fackidiot”, step by step

fackidiot traces back through two separate lines of ancestry.

via Swedish fack

StepLanguageWordMeaning
1Swedishfacka compartment, a box, a slot; a trade, a...
2Germanfachsecond-person singular imperative of fachen
3Middle High Germanvach-fold
4Old High Germanfahwall
5Proto-Germanic*fak
6Proto-GermanicfakąAn enclosed or defined space; division;...
7Proto-Indo-Europeanpeh₂ǵ-to attach

via Swedish idiot

StepLanguageWordMeaning
1Swedishidiotan idiot
2Ancient Greekἰδιώτηςa private person, one not engaged in public...
3Ancient Greekἴδιοςpertaining to self, that is, one's own; private;...
4Proto-Hellenic*hwédios
Every word from Proto-Indo-European peh₂ǵ-