Lewis & Short

Thēseus (dissyl.), -ĕï;, and -ĕos, m., = Θησεύς, a king of Athens, son of Ægeus (acc. to others, of Neptune) and Æthra; husband of Ariadne, and afterwards of Phædra; father of Hippolytus, by the Amazon Hippolyte; friend of Pirithoüs; conqueror of the highway-robbers Periphetes, Sinnis, etc., and of the Minotaur, Ov. M. 7, 433 sq.; id. H. 10, 3; Stat. Th. 12, 576; Cic. N. D. 3, 18, 45; 3, 31, 76; id. Fin. 1, 20, 65; Prop. 2, 14 (3, 6), 7; Ov. F. 6, 737; Verg. A. 6, 618; Hor. C. 4, 7, 27 al.
Hence,

  1. A. Thēsēus, a, um, adj., of or belonging to Theseus, Thesean: carina, Prop. 1, 3, 1: laus, Ov. M. 8, 263: fides, id. Tr. 1, 3, 66: crimen, i. e. the desertion of Ariadne, id. F. 3, 460; id. A. A. 3, 459.
    Transf., poet., for Athenian: via, Prop. 3 (4), 21, 24: Hymettus, Mart. 13, 104, 1: favi, id. 4, 13, 4.
  2. B. Thē-sēïus, a, um, adj., of or belonging to Theseus: heros, i. e. Hippolytus, Ov. M. 15, 492: dicta, Stat. Th. 12, 681: Troezen, ruled by the ancestors of Theseus, id. ib. 4, 81.
  3. C. Thēsīdes, ae, m., the offspring of Theseus, i. e. Hippolytus, Ov. H. 4, 65; Aus. Epigr. 20.
    Transf., poet., for an Athenian, Verg. G. 2, 383.
  4. D. Thēsēis, ĭdis, f., the title of a poem concerning Theseus, Juv. 1, 2.