Type Word Usage Old Dutch Meaning & History Old Dutch word meaning "to buy, to trade". Related ItemsFamily Tree·Details Other Languages & Culturesceapian(Anglo-Saxon) kaupōną(Old Germanic) koufon(Old High German) Surname DescendantsCoeman, Coemans, Coumans, Houtkooper, Koeman, Koemans, Koopman, Koumans(Dutch) Chapman(English) Kauffmann, Kaufman, Kaufmann(German) Kauffmann, Kaufman, Kaufmann(Jewish)