I.liveliness, activity, force, vigor (mostly poet. and in postAug. prose; “not in Cæs. or Cic.): nec tarda senectus Debilitat vires animi mutatque vigorem,” Verg. A. 9, 611: igneus est ollis vigor, id. ib. 6, 730: “juventas et patrius vigor,” Hor. C. 4, 4, 5: “animi,” Ov. H. 16, 51; Liv. 9, 16: “mentis,” Quint. 11, 2, 3: “quantum in illo (libro), di boni, vigoris est, quantum animi!” Sen. Ep. 64, 2: “gemmae,” strong brilliancy, Plin. 37, 7, 28, § 101; cf. id. 9, 35, 54, § 109. —Plur.: “vigores mentium,” Gell. 19, 12, 4: “animorum,” Vitr. 6, 1 fin.; Sil. 15, 355.
vĭgor , ōris, m. vigeo,