Lewis & Short

septem,

  1. I. num. adj. indecl. [Sanscr. saptan; Gr. ἑπτά; Goth. sibun; Germ. sieben; Engl. seven], seven: septem menses sunt, quom, etc., Plaut. Most. 2, 2, 39: septem milia, id. Mil. 1, 1, 46: dis, quibus septem placuere colles, Hor. C. S. 7: septem et decem, Plaut. Cist. 4, 2, 89: decem et septem, Liv. 33, 21, 8; Plin. Ep. 2, 17, 2: decem septemque, Nep. Cato, 1, 2: decem septem, Liv. 24, 15, 2 Weissenb.; cf. Prisc. p. 1170 P.; v. also septendecim: septem et viginti minae, Plaut. Merc. 2, 3, 94: septem et triginta annos, Cic. Rep. 2, 10, 17; Liv. 1, 21 fin.: sex aut septem loca, Lucr. 4, 577; also unconnected: illum his mensibus Sex septem non vidisse proximis, Ter. Eun. 2, 3, 40; so, sex septem, Hor. Ep. 1, 1, 58.
    With numerals: VI. VII. diebus, Cic. Att. 10, 8, 6 Orell. N. cr.: septem miracula, the seven wonders of the world, Plin. 36, 5, 4, § 30; Val. Max. 4, 6, 1 ext.; so, septem mira, Lact. 3, 24, 2: septem spectacula, Vitr. 2, 8, 11; cf. Gell. 10, 18, 4.
  2. II. In partic.
    1. A. As subst., the seven sages of Greece: eos vero septem, quos Graeci sapientes nominaverunt, Cic. Rep. 1, 7, 12; id. Tusc. 5, 3, 7; id. Lael. 2, 7; id. de Or. 3, 34, 137; id. Fin. 2, 3, 7; id. Off. 3, 4, 16: qui (Bias) sapiens habitus est unus e septem, id. Lael. 16, 59: Thales, qui sapientissimus in septem fuit, id. Leg. 2, 11, 26.
    2. B. Septem Aquae, a lake in the Reatine territory, Cic. Att. 4, 15, 5.
    3. C. Septem Stellae, for septentriones, the seven-stars, the Pleiades, Sen. Troad. 443.
    4. D. Septem Maria, the lagunes at the mouth of the Po, where Venice was afterwards founded, Plin. 3, 15, 16, § 119; Tac. H. 3, 9.