Where does “fagsprog” come from?

fagsprog (Danish) comes from Danish fag, 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.

fagsprog (Danish): jargon; language associated with a profession, a...

Definitions

  1. jargon; language associated with a profession, a...

Ancestry of “fagsprog”, step by step

fagsprog traces back through two separate lines of ancestry.

via Danish fag

StepLanguageWordMeaning
1Danishfagsubject; trade, craft, profession; bay
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 Danish sprog

StepLanguageWordMeaning
1Danishsproglanguage
2Middle Low Germansprāke
3Old Saxonsprākaspeech
4Proto-West Germanic*sprākuspeech, language
Every word from Proto-Indo-European peh₂ǵ-Every word from Proto-Germanic fakąEvery word from Proto-Germanic *fak