Aífe is the Old Irish form of the name Aoife, derived from the word oíph meaning "beauty" (modern Irish aoibh). In Irish mythology, Aífe (pronounced approximately "EE-fa") is a formidable female warrior who appears in the Ulster Cycle, particularly in the sagas Tochmarc Emire ("The Wooing of Emer") and Aided Óenfhir Aífe ("The Death of Aífe's Only Son"). Mythological Role Aífe is best known as a rival and sometimes sister of the warrior-woman Scáthach. In Tochmarc Emire, she lives east of a land called Alpi (usually interpreted as Alba, i.e., Scotland) and is at war with Scáthach. The hero Cúchulainn, who is training under Scáthach on the Isle of Skye, becomes involved in the conflict. Scáthach, fearing for Cúchulainn's safety, gives him a sleeping potion, but the hero is so resilient that it only puts him to sleep for a short time. He eventually defeats Aífe in single combat but spares her life on the condition that she bear him a son, Connla. In another legend, the Children of Lir, an Aoife (a later variant of Aífe) appears as the jealous third wife of Lir. She transforms Lir's children into swans, a tale that remains one of Ireland's most famous folktales. Cultural and Linguistic Significance The name Aífe evolved into the modern Irish and Scottish Gaelic form Aoife, which is now one of the most popular female names in Ireland. It is sometimes Anglicized as Eve or Eva, though its pronunciation and etymology differ. Related variants in Irish include Aoibhe and Aoibhín, all sharing the root meaning of "beauty." Notable Bearers in Legend Aífe's two main mythological roles—as a warrior-rival of Scáthach and as the lover of Cúchulainn—highlight her complexity. The story of Connla, the son she bore, is told in Aided Óenfhir Aífe, where the boy is tragically killed by his own father. This tale emphasizes the themes of fate and father-son conflict common in Celtic myth. Meaning: Beauty Origin: Old Irish Type: First name Usage regions: Irish, Old Irish, Scottish Gaelic