vĭgor, ōris, m. [vigeo], 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,