Lewis & Short

2. Ortygĭa, ae, or Ortygĭē, ēs, f., = Ὀρτυγία.

  1. I. Another name for the isle of Delos, Serv. Verg. A. 3, 72; Ov. M. 15, 337; Fest. p. 183 Müll.
    Hence, Orty-gĭus, a, um, adj., Ortygian: dea, i. e. Diana, Ov. M. 1, 694: boves, of Apollo, bred in Delos, id. F. 5, 692.
  2. II. An island which forms a part of the city of Syracuse, now Siracusa, Verg. A. 3, 694; Ov. M. 5, 499; id. F. 4, 471.