Lassitude
/ˈlæs.ɪ.tjuːd/noun
A state of weariness or lack of energy.
Did you know?Lassitude comes from Latin *lassitudo*, built on *lassus* meaning “weary,” a root that fed a whole family of words for slackness, fatigue, and the body’s surrender to depletion.
Etymological Timeline
Proto-Indo-European
PIE
*les-
“to be weak or exhausted”
Latin
Latin
lassus
“weary, tired, faint”
Late Latin
Latin
lassitūdō
“weariness, fatigue”
Old French
Old French
lassitude
“weariness, exhaustion”
16th Century
English
lassitude
“weariness; lack of vigor”
Modern English
English
lassitude
“a state of physical or mental weariness”