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 ὄστρεον
Ancient Greek ὀστέον (mention)

English oyster (derived)
German Auster (derived)
Middle English oystre (derived)
French huître (mention)
Irish oisre (derived)
Scottish Gaelic oisir (derived)
Galician ostra (derived)
Ancient Greek ὄστρακον (mention)
Ancient Greek ὄστρακον (mention)
Ancient Greek ὀστρύα (mention)
Ancient Greek ὀστρέϊνος (affix)
Ancient Greek ὄστριμον (mention)
Hungarian osztriga (derived)
Italian ostro (mention)
Latin ostrum (derived)
Latin ostrea (derived)
Latin ostreum (derived)
Latvian austere (cognate)
Macedonian острига (derived)
Dutch oester (derived)
Norman hitre (mention)
Portuguese ostra (mention)
Venetian òstrega (derived)