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 εἰσ-
Ancient Greek εἰς (mention)

Greek εισιτήριο (mention)
Ancient Greek εἰσέρχομαι (affix)
Ancient Greek εἴσοδος (affix)
Ancient Greek εἰσαγωγή (affix)
Ancient Greek εἰσβάλλω (affix)
Ancient Greek εἰσοράω (affix)
Ancient Greek εἰσβαίνω (affix)
Ancient Greek εἰσπλέω (affix)