Lewis & Short

1. Pȳtho, ūs, f., = Πυθώ, the former name of Delphi and its environs, Tib. 2, 3, 27 (Python, Müll.); Luc. 5, 134.
Hence,

  1. I. Pȳthĭcus, a, um, adj., = Πυθικός, another form for Pythius, Pythian: Apollo, Liv. 5, 21: oraculum, id. 5, 15: sortes, id. 5, 23: divinatio, Val. Max. 1, 8, 10: agon, Tert. adv. Gnost. 6.
  2. II. Pȳthĭus, a, um, adj., = Πύθιος, Pythian, Delphic, Apollonian: Delphis prognatus Pythius Apollo, Naev B. P. 2, 20; so, Apollo, Cic. Off. 2, 22, 77; also incola, Hor. C. 1, 16, 6; and deus, Prop. 2, 31 (3, 29), 16: oraculum, Cic. Div. 1, 1, 3: regna, i. e. Delphi, Prop. 3, 13 (4, 12), 52: antra, Luc. 6, 425: vates, i. e. the Pythoness, Pythia, Juv. 13, 199; cf. in the foll.
    1. B. Substt.
      1. 1. Pȳthĭa, ae, f., = ἡ Πυθία, the priestess who uttered the responses of the Delphic Apollo, the Pythoness, Pythia, Cic. Div. 1, 19, 38; Nep. Milt. 1, 3.
      2. 2. Pȳthĭa, ōrum, n., = τὰ Πύθια (ἱερά), the Pythian games, celebrated at Delphi every fourth year in honor of Appollo, Ov. M. 1, 447: qui Pythia cantat Tibicen, Hor. A. P. 414: Thessalicae veniunt ad Pythia laurus, Luc. 6, 409; Plin. 35, 9, 35, § 58.