Webster's Revised Unabridged Dictionary · 1913

Languor

Languor , noun

[Old English langour, Old French langour, French langueur, Latin 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. [Obsolete]
Sick men with divers languors. — Wyclif (Luke iv. 40)
3.
Listless indolence; dreaminess. — The Century
German dreams, Italian languors. — Pope