Lewis & Short

2. lēvĭtas (laev-), ātis, f. [2. lēvis], smoothness.

  1. I. Lit. (class.): speculorum, Cic. Univ. 14; id. de Or. 3, 25, 99; id. Univ. 6; Plin. 2, 3, 3, § 7: intestinorum, slipperiness, lubricity, Cels. 4, 16; 2, 8.
  2. II. Trop., of speech, smoothness, fluency, facility: Demosthenes nihil levitate Aeschini et splendore verborum cedit, Cic. Or. 31, 110: verborum, Quint. 10, 1, 52: effeminata, id. 8, 3, 6.