Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old Norse eik
Proto-Germanic *aiks (inherited)
Proto-Indo-European *h₂eyǵ- (root)
Proto-Indo-European *h₂eyǵ- (derived)

English futtock (mention)
English Aigburth (derived)
Danish eg (derived)
Faroese eik (derived)
Westrobothnian eik (inherited)
Old High German eih (cognate)
Icelandic eik (derived)
Norwegian Bokmål eik (inherited)
Norwegian Bokmål Egersund (mention)
Norwegian Nynorsk eik (derived)
Old Norse -inn (mention)
Albanian enjë (cognate)
Swedish ek (inherited)