Lack of physical or mental energy; listlessness. See Synonyms at lethargy.
A dreamy, lazy mood or quality: "It was hot, yet with a sweet languor about it"(Theodore Dreiser).
Oppressive quiet or stillness.
[Middle English, from Old French, from Latin, from languēre, to be languid; see languish.] lan'guor·ous adj., lan'guor·ous·ly adv., lan'guor·ous·ness n.
c.1300, "disease, distress, mental suffering," from O.Fr. languor, from L. languorem (nom. languor) "faintness, feebleness, lassitude," from languere "be weak or faint" (see lax). Sense shifted to "faintness, weariness" (1656) and "habitual want of energy" (1825).