Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

2. Pĕlĭas, ae (nom. Pelia, Sen. Med. 201; 276), m., = Πελίας, a king of Thessaly, son of Neptune and the nymph Tyro, brother of Neleus, half-brother of Æson, and father of Acastus. Being appointed by Æson guardian to his son Jason, he sought, when Jason grew up, to rid himself of the charge by inciting him to join the Argonautic expedition. After Jason’s return Pelias was slain by his own daughters, at the artful instigation of Medea, Plaut. Ps. 3, 2, 80; Hyg. Fab. 24; Enn. ap. Auct. Her. 2, 22, 34 (Trag. v. 286 Vahl.); id. ap. Cic. de Or. 3, 58, 217 (id. v. 313 ib.); Ov. M. 7, 304; Val. Fl. 1, 22 et saep.
Hence, Pĕlĭădes, the daughters of Pelias, who, upon Medea’s promise to restore their father’s youth, cut him to pieces, and boiled him in a caldron, Phaedr. 4, 7, 16; cf. Hyg. Fab. 24.

Pēlĭon, ii (masc. collat. form Pēlĭos, Plin. 4, 8, 15, § 30: Pelio, scanned as a dissyl. per syniz., Sil. 3, 495), n., = Πήλιον, a high mountain in Thessaly, a continuation of Ossa, now Zagora, Plin. 2, 65, 65, § 162; Verg. G. 1, 281; 3, 94; Ov. M. 12, 513; 1, 155; Mel. 2, 3, 2.
Hence,

  1. A. Pēlĭăcus, a, um, adj., of or belonging to Pelion: vertex, Cat. 64, 1: apex, Ov. F. 1, 308: juga, Stat. Achill. 1, 321: trabs, i.e. the Argo (because built of timber from Pelion), Prop. 3 (4), 22, 12: Peliaca carina, Val. Fl. 8, 417; cf. also: Peliaca cuspis, of Achilles, cut on Pelion, Ov. M. 12, 74: axis, the chariot of Achilles, Sen. Troad. 414.
  2. B. Pēlĭus, a, um, adj., of or belonging to Pelion, Pelian: mons, Cic. Fat. 15, 35: in nemore Pelio, Enn. ap. Auct. ad Her. 2, 22, 34 (Trag. v. 280 Vahl.); so, in imitation, nemus, Phaedr. 4, 7, 6.
  3. C. Pēlĭas, ădis, f. adj., that comes from Pelion: Pelias hasta, the spear of Achilles (because its shaft came from Pelion), Ov. H. 3, 126: pinus, the Argo, Stat. Th. 5, 335.
    As subst.: Pēlĭas, ădis, f., a spear, Auct. Pan. ad Pis. 165.