Where does “klup” come from?

klup (Proto-Balto-Slavic) comes from Proto-Indo-European kʷelp-, from Proto-Indo-European kʷel- — to turn.

Ancestry of “klup”, step by step

klup traces back through two separate lines of ancestry.

via Proto-Indo-European kʷelp-

StepLanguageWordMeaning
1Proto-Indo-Europeankʷelp-to bend; to curve, arch
2Proto-Indo-Europeankʷel-to turn

via Proto-Indo-European kʷl̥p-

StepLanguageWordMeaning
1Proto-Indo-Europeankʷl̥p-to bend knees, to stumble
Every word from Proto-Indo-European kʷel- →Every word from Proto-Indo-European kʷelp- →
klup — Etymology, Origin & Word History | Etymology Explorer