Where does “Kopenhagenerin” come from?

Kopenhagenerin (German) comes from German Kopenhagener, from German Kopenhagen, from Middle Low German Kôpenhāgen, from Old Danish Køpmannæhafn, from Old Danish hafn, from Old Norse hǫfn, from Proto-Germanic habnō, from Proto-Indo-European kopno-.

Ancestry of “Kopenhagenerin”, step by step

StepLanguageWordMeaning
1GermanKopenhagenerA native or resident of Kopenhagen male or of unspecified sex
2GermanKopenhagen
3Middle Low GermanKôpenhāgen
4Old DanishKøpmannæhafnCopenhagen
5Old Danishhafnharbour, port
6Old Norsehǫfnport, harbor, haven
7Proto-Germanichabnōharbour, haven; harvour, haven
8Proto-Indo-Europeankopno-
Every word from Proto-Indo-European kopno-Every word from Proto-Germanic habnōEvery word from Old Norse hǫfn