Family name origins & meanings
- English : occupational name for a merchant or trader, Middle English copman, from Old Norse kaupma{dh}r, cognate with Old English cēapmann (see Chapman). Kaupma{dh}r is also found as a personal name in England, and this use may lie behind some cases of the surname.
- Probably an Americanized spelling of North German Koopmann or Dutch Coopman.