In the Middle Ages this represented a contracted form of Adeline. In modern use it is either a revival of this or a respelling of Aileen. In Scotland and Ireland it has sometimes been chosen as representing an Anglicized spelling of the Gaelic vocabulary word àlainn (Scottish), álainn (Irish), meaning ‘lovely’.
English, Scottish, and French: status name for a young servant, Middle English and Old French page (from Italian paggio, ultimately from Greek paidion, diminutive of pais ‘boy’, ‘child’). The surname is also common in Ireland (especially Ulster and eastern Galway), having been established there since the 16th century.