Lewis & Short

Aesōn, ŏnis, m., = Αἴσων, a Thessalian prince, brother of king Pelias, and father of Jason, who, according to fable, was in extreme old age transformed by the magic arts of Medea into a youth, Ov. M. 7, 2.

  1. I. Aesŏnĭdes, ae, patr. m., = Αἰσονίδης, a male descendant of Æson, i. e. Jason, Ov. M. 7, 164: Phasias Aesoniden, Circe tenuisset Ulixem, id. A. A. 2, 103: mobilis Aesonide, id. H. 6, 109 al.
  2. II. Aesŏnĭus, a, um, adj., Æsonian: heros, i. e. Jason, Ov. M. 7, 156: domus, id. H. 12, 134.