Áednat is a rare feminine name of Old Irish origin, derived as a feminine form of Áed. The name Áed itself is an Old Irish form of Aodh, a name that stems from the early Irish word for 'fire'. Thus, Áednat carries the fiery connotations of its root. In early Ireland, Áed was a prevalent masculine name, borne by various mythological and historical figures, including high kings.