accidie
Accidie (noun) means a deep laziness that leaves someone feeling tired and uninterested in everything.
Etymology
Accidie comes from Middle English accidie, from Anglo-Norman accidie, Old French accide, accidie, from Late Latin accīdia, an alteration of acēdia (“sloth, torpor”), from Ancient Greek ἀκήδεια (akḗdeia, “indifference”), formed from ἀ- (a-, “not”) and κῆδος (kêdos, “care”). It is a doublet of acedia.