enervation
nounEtymology From Middle French énervation.
1
Act of enervating; debilitation.
2
State of being enervated; debility.
- His early-morning alertness had gradually given way to bad-tempered enervation as the sun went down, and now his legs dragged, his shoulders slumped as he walked, and even from here I could hear his breath wheezing out of his nose.2010, Helon Habila, Oil on Water, AudioGO (2011), page 169: