Erin's a Hiberno-English derivative of the Irish word "Éirinn". ("Éirinn"'s the dative case of the Irish word for Ireland - "Éire", genitive "Éireann"). According to Irish mythology and folklore, the name was originally given to the island by the Milesians after the goddess Ériu. Poets and nineteenth-century Irish nationalists used Erin in English as a romantic name for Ireland. In this context, along with Hibernia, Erin's the name sometimes given to the female personi… (More on Erin)