Where does “chepen” come from?

chepen (Middle English) comes from Old English ċēapian, from Proto-Germanic kaupōną, from Proto-Germanic kaupô, from Latin caupo, from Proto-Indo-European kaup-.

Ancestry of “chepen”, step by step

StepLanguageWordMeaning
1Old Englishċēapianto bargain, chaffer, trade, to contract for the...
2Proto-Germanickaupōnąto buy; trade
3Proto-Germanickaupôinnkeeper; merchant
4LatincaupoTradesman; Innkeeper, shopkeeper
5Proto-Indo-Europeankaup-—
Every word from Proto-Indo-European kaup- →Every word from Latin caupo →Every word from Proto-Germanic kaupô →