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 ὀλιγαρχικός
Ancient Greek ὀλιγάρχης (suffix)
Ancient Greek ικός (suffix)

English oligarchic (derived)
German oligarchisch (derived)
Italian oligarchico (derived)
Latin oligarchicus (derived)