Lewis & Short

Pŏlyxĕna, ae, f., = Πολυξένη,

  1. I. a daughter of Priam, whom Pyrrhus, the son of Achilles, sacrificed at his father’s grave, Ov. M. 13, 448; Juv. 10, 262; Sen. Troad. 368; Hyg. Fab. 110; cf. Verg. A. 3, 321.
    Hence,
  2. II. Pŏlyxĕnĭus, a, um, adj., of Polyxena, Polyxenian: caedes, Cat. 64, 369.