Lewis & Short

1. lēvĭgo, āvi, ātum, 1, v. a. [2. lēvis], to make smooth, to smooth (not in Cic.; syn. polio, dolo, limo).

  1. I. Lit.: omnes parietes tectorio levigantur, Varr. R. R. 3, 11, 3: aliquid opere tectorio, Col. 9, 7, 1; Plin. 17, 14, 24, § 101: ad levigandam cutem, id. 20, 3, 10, § 20: alvum, to make slippery, Gell. 4, 11, 4: scabritia levigatur dente conchāve, Plin. 13, 12, 25, § 81.
  2. II. Transf., to make small, bruise small, pulverize, levigate: quae diligenter contrita levigantur, Col. 12, 41 fin.: semina, id. 6, 17, 3: galla cum austero vino levigata, id. 7, 5, 12; 9, 13, 5.
    Hence, lēvĭgātus, a, um, P. a., smooth, slippery (post-class. and rare): oleum levigatius et spissius est, Macr. S. 1, 12 med.

2. lĕvĭgo, āvi, ātum, 1, v. a. [1. levis], to make light, lighten: gravia, Cassiod. de Amic. prol. § 33: pondus sollicitudinis, Gregor. Ep. 7, 76: omni sarcinā, App. M. 4, p. 142, 23.