lassitude
noun/ˈlæsɪtjuːd/
/ˈlæsɪtuːd/
[uncountable] (formal)- a state of feeling very tired in mind or body; lack of energy
- I was overcome by lassitude.
Word Originlate Middle English: from French, from Latin lassitudo, from lassus ‘tired’.
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lassitude