Etymology of a Curse Word

[Pythagorean]

~5000 BC, Proto-Indo-Europeans:
*pewg- (to strike, assail)

NOTE: Here, Proto-Germanic tribes break away from Proto-Indo-Europeans and innovate p -> f, g -> k, d->t - you can see this in many examples if you compare latin/french and english (ped <-> foot, pater <-> father, pisc <-> fish, perd <-> fart)

~2500 B,C
*fukkona (A: to strike, B: to copulate)

~500 AD, Old English:
*fuccian (to copulate)

~600 AD, Old High German
fochon

~800 AD, Old Norse:
*fokka

~1200 AD, Middle English:
*fukken

 

[haushofer]

In contemporary Dutch it's still "fukken", derived from the English. "Je moet niet met me fukken"/ "don't f*ck with me"