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 ἄρα
Proto-Indo-European *h₂er- (root)
Proto-Indo-European *h₂er- (derived)
Lithuanian ir̃ (cognate)

Greek άραγε (mention)
Greek άρα (inherited)
Ancient Greek αὐτάρ (compound)
Lithuanian ir (cognate)
Lithuanian ar (cognate)
Latvian ir (cognate)
Latvian ar (cognate)
Latvian arī (mention)