Lassitude

[las-i-tood, -tyood] /ˈlæs ɪˌtud, -ˌtyud/

noun
1.
weariness of body or mind from strain, oppressive climate, etc.; lack of energy; listlessness; languor.
2.
a condition of indolent indifference:
the pleasant lassitude of the warm summer afternoon.
/ˈlæsɪˌtjuːd/
noun
1.
physical or mental weariness
n.

early 15c., from Middle French lassitude (14c.), from Latin lassitudinem (nominative lassitudo) “faintness, weariness,” from lassus “faint, tired, weary,” from PIE *led- “slow, weary” (cf. Old English læt “sluggish, slow;” see late (adj.)), from root *le- “to let go, slacken” (see lenient).

lassitude las·si·tude (lās’ĭ-tōōd’, -tyōōd’)
n.
A state or feeling of weariness, diminished energy, or listlessness.

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