Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latin ethnicus
Ancient Greek ἐθνικός (borrowed)

English ethnic (mention)
Czech etnický (derived)
Finnish etninen (derived)
French ethnique (derived)
Hungarian etnikum (mention)
Indonesian etnik (derived)
Indonesian etnis (derived)
Latvian etnisks (mention)
Dutch etnisch (derived)
Norman ethnique (derived)
Polish etniczny (derived)
Portuguese étnico (derived)
Romanian etnic (derived)
Albanian etnik (derived)