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Date: 1300-1400
Language: Latin
Origin: lethargicus, from Greek, from lethargos 'forgetful, lazy', from lethe 'forgetfulness' + argos 'lazy'

lethargic

adjective
     
le‧thar‧gic
feeling as if you have no energy and no interest in doing anything [= lazy]:
The hot weather was making us all lethargic.
lethargically adverb

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