Lewis & Short

Sīsyphus (anciently Sīsŭpus and Sīsĭpus; the last in Inscr. R. N. 4472 Momms.; cf. Ritschl, Monum. Epigr. Tria, p. 26), i, m., = Σίσυφος.

  1. I. Son of Æolus, king of Corinth, famous for his cunning and robberies. He was killed by Theseus. His punishment in the infernal regions was to roll a stone up hill which constantly rolled back again, Hyg. Fab. 60; Serv. Verg. A. 6, 616; Poët. ap. Cic. Tusc. 1, 5, 10; Ov. M. 4, 459; 4, 465; 13, 26; Prop. 4 (5), 11, 23; Hor. C. 2, 14, 20; id. Epod. 17, 68 al.: Ulixi Sisyphique prudentia, Cic. Tusc. 1, 41, 98; cf. vafer, Hor. S. 2, 3, 21.
    Hence,
      1. 1. Sīsy-phĭus, a, um, adj., of or belonging to Sisyphus: labores, Prop. 2, 17 (3, 9), 7; 2, 20 (3, 13), 32: cervix, Sen. Herc. Oet. 942: portus, i. e. Corinth, Stat. Th. 2, 380: Isthmus, of Corinth, Sil. 14, 51: opes, i. e. of Creusa (as daughter of Creon, king of Corinth), Ov. H. 12, 204: Ulixes sanguine cretus Sisyphio (because Sisyphus seduced Anticlea, the mother of Ulysses, before her marriage with Laertes), id. M. 13, 32; cf. Serv. Verg. A. 6, 529.
      2. * 2. Sĭsyphēïus, a, um, adj., of Sisyphus: vincla, i. e. the marriage with Sisyphus (of his wife Merope), Avien. Arat. 597.
      3. 3. Sīsyphĭdes, ae, m., offspring of Sisyphus: Ulysses (v. supra, 1.), Ov. A. A. 3, 313.
  2. II. A dwarf of M. Antony, so named by him because of his shrewdness. Hor. S. 1, 3, 47 Schol.