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出典:Wiktionary
出典:『Wiktionary』 (2025/07/08 04:30 UTC 版)
North/Low German surname, from Middle Low German kōpman (“merchant, buyer”), from Old Saxon kōpman, from Proto-West Germanic *kaupamann. This is the Low German form of Kaufmann. Compare Koopman.
Koopmann (plural Koopmanns)
Koopmann