Aetra, an English prelate, was a pupil of St. Hilda, in the Monastery of Whitby, and (according to Bede) became bishop of Dorchester. He is probably the same as HAEDDI (q.v.); but Florence of Worcester (Chronicle, sub ann. 622) supposes him to have been the bishop of a new see established for the South Angles in A.D. 679. Perhaps AEtra. may have been a diminutive for Haeddi. See Bede, Hist. Eccles. 4:23; Ang. Snacra, i, 19,3. ' .
Af, in Egyptian mythology, was the mystical name of the sun in the lower hemisphere, or Hades.