Where does “*kupiti” come from?

*kupiti (Slavic) comes from Proto-Germanic kaupōną, from Proto-Germanic kaupô, from Latin caupo, from Proto-Indo-European kaup-.

Ancestry of “*kupiti”, step by step

StepLanguageWordMeaning
1Proto-Germanickaupōnąto buy; trade
2Proto-Germanickaupôinnkeeper; merchant
3LatincaupoTradesman; Innkeeper, shopkeeper
4Proto-Indo-Europeankaup-—

Words derived from “*kupiti”

Every word from Proto-Indo-European kaup- →Every word from Latin caupo →Every word from Proto-Germanic kaupô →