Where does “rumpknull” come from?

rumpknull (Swedish) comes from Swedish rumpa, from Old Swedish rumpa, from Old Norse rumpr, from Middle Low German rump, from Proto-Germanic rumpō — trunk of a tree, log.

rumpknull (Swedish): a buttfuck

Definitions

  1. a buttfuck

Ancestry of “rumpknull”, step by step

rumpknull traces back through two separate lines of ancestry.

via Swedish rumpa

StepLanguageWordMeaning
1Swedishrumpaa butt, a backside, a rump
2Old Swedishrumpatail
3Old Norserumprrump
4Middle Low Germanrumpthe bulk or trunk of a body, trunk of a tree
5Proto-Germanicrumpōtrunk of a tree, log

via Swedish knull

StepLanguageWordMeaning
1Swedishknulla fuck (act of sexual intercourse)
2Swedishknullato have sex; to fuck
3Proto-Germanicknuzlijanąto butt; bump; knock; beat; to mash
4Proto-Indo-Europeanǵen-
Every word from Proto-Germanic rumpō