Lascivious, a.
Etymology: [L. lascivia wantonness, fr. lascivus wanton; cf. Gr. (lash to desire.]
1. Wanton; lewd; lustful; as, lascivious men; lascivious desires. Milton.
2. Tending to produce voluptuous or lewd emotions. He capers nimbly in a lady's chamber To the lascivious pleasing of a lute. Shak. -- Las*civ"i*ous*ly, adv. -- Las*civ"i*ous*ness, n.
Shades of meaning
Fernald has no entry of its own for lascivious; he lists it under brutish.
He lists it without comment; the entries above explain its neighbors.