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 ἔρομαι
Proto-Hellenic *erwomai (inherited)

Ancient Greek εἴρων (mention)
Ancient Greek ἔρευνα (mention)
Ancient Greek ἀνείρομαι (mention)
Ancient Greek ἐρεείνω (mention)
Ancient Greek ἐπέρομαι (affix)