Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek Στύξ
Ancient Greek στυγνός (mention)

English stygian (mention)
English Styx (borrowed)
English stygo- (derived)
Czech Styx (borrowed)
German Styx (borrowed)
Spanish Estigia (derived)
French Styx (mention)
Hungarian Sztüx (mention)
Italian Stige (mention)
Italian stigio (mention)
Latin Styx (borrowed)