Lewis & Short

Ēgĕrĭa (Aeg-), ae, f., = Ἠγερία, a nymph or Camoena celebrated in Roman mythology, the wife and instructress of Numa, with two sacred groves and fountains, the one near Rome, opposite the Porta Capena, the other in the neighborhood of Aricia, Liv. 1, 19; 21; Val. Max. 1, 2, 1; Ov. F. 3, 154; 261 sq.; 4, 669; id. M. 15, 482 sq.; Verg. A. 7, 763; 775; Juv. 3, 12 sq.