Where does “fak” come from?

fak (Middle English) comes from Old English fæc, from Proto-West Germanic fak, from Proto-Germanic faką, from Proto-Indo-European peh₂ǵ- — to attach.

Ancestry of “fak”, step by step

StepLanguageWordMeaning
1Old Englishfæca division, space; a portion, period, or space of...
2Proto-West Germanicfakdivision, compartment; period, interval
3Proto-GermanicfakąAn enclosed or defined space; division;...
4Proto-Indo-Europeanpeh₂ǵ-to attach

Words derived from “fak”

Every word from Proto-Indo-European peh₂ǵ- →Every word from Proto-Germanic faką →Every word from Proto-West Germanic fak →
fak — Etymology, Origin & Word History | Etymology Explorer