Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English agonist
Ancient Greek ἀγωνιστής (borrowed)

English protagonist (prefix)
English co-agonist (prefix)
English coagonist (prefix)
English deuteragonist (prefix)
English superagonist (prefix)
English tritagonist (prefix)