Aegea

Aegea is a back-formation from "Aegean", the sea that was named for an eponymous Aegeus in early levels of Greek mythology. The Encyclopaedia Britannica (1911) mentioned an Aegea, queen of the Amazons, as an alternative eponym of the Aegean Sea, and Aegea was the name of the wife of the Roman proconsul of Achaia whom the apostle Andrew converted and baptised, according to Jacob de Voragine's Golden Legend, De Sancto Andrea Apostolo. "Aegea" is found in modern baby-name books and carried by some contemporary women.
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[Greek] She was sister to Circe and Pasiphae, and daughter of the sun. When the Titans attacked the gods of Olympus, Gaia placed Aega in a cave to hide her shining loveliness. Japanese (Amaterasu) and Finnish (Paivatar) myths have the same theme.