LANGUOR
languor, lethargy, sluggishness, phlegm, flatness
(noun) inactivity; showing an unusual lack of energy; “the general appearance of sluggishness alarmed his friends”
languor, lassitude, listlessness
(noun) a feeling of lack of interest or energy
languor, dreaminess
(noun) a relaxed comfortable feeling
languor
(noun) oppressively still air; “the afternoon was hot, quiet, and heavy with languor”; “Summer shows all the languor of a hot, breezeless day as the dancer lazily brushes her hand over her brow”
Source: WordNet® 3.1
Etymology 1
Noun
languor (countable and uncountable, plural languors)
(uncountable) A state of the body or mind caused by exhaustion or disease and characterized by a languid or weary feeling; lassitude; (countable) an instance of this.
Synonym: torpor
(uncountable) Melancholy caused by lovesickness, sadness, etc.; (countable) an instance of this.
(uncountable) Dullness, sluggishness; lack of vigour; stagnation.
(uncountable) Listless indolence or inactivity, especially if enjoyable or relaxing; dreaminess; (countable) an instance of this.
(uncountable) Heavy humidity and stillness of the air.
(uncountable, obsolete) Sorrow; suffering; also, enfeebling disease or illness; (countable, obsolete) an instance of this.
Etymology 2
Verb
languor (third-person singular simple present languors, present participle languoring, simple past and past participle languored)
(intransitive) To languish.
Source: Wiktionary
Lan"guor, n. Etym: [OE. langour, OF. langour, F. langueur, L.
languor. See Languish.]
1. A state of the body or mind which is caused by exhaustion of
strength and characterized by a languid feeling; feebleness;
lassitude; laxity.
2. Any enfeebling disease. [Obs.]
Sick men with divers languors. Wyclif (Luke iv. 40).
3. Listless indolence; dreaminess. Pope. " German dreams, Italian
languors." The Century.
Syn.
– Feebleness; weakness; faintness; weariness; dullness; heaviness;
lassitude; listlessness.
Source: Webster’s Unabridged Dictionary 1913 Edition