Lethargy meaning

lĕthər-jē
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The definition of lethargy is drowsiness or a lack of energy.

An example of lethargy is how someone would feel after taking a sedative.

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A condition of abnormal drowsiness or torpor.
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(pathology) A condition characterized by extreme fatigue or drowsiness, or prolonged sleep patterns. [from 14th c.]
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(medicine) An abnormal state of drowsiness, as caused by disease or drugs.
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A great lack of energy; sluggishness, dullness, apathy, etc.
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(medicine) An abnormal state of drowsiness, as caused by disease or drugs.
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A state of extreme torpor or apathy, especially with lack of emotion or interest; loosely, sluggishness, laziness. [from 14th c.]
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Origin of lethargy

  • Middle English letargie from Old French from Late Latin lēthārgia from Greek lēthārgiā from lēthārgos forgetful lēthē forgetfulness ārgos idle (a- without a–1) (ergon work werg- in Indo-European roots)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin lÄ“thargia, from Ancient Greek ληθαργία (lÄ“thargia, “drowsiness"), from λήθαργος (lÄ“thargos, “forgetful, lethargic"), from λήθη (lÄ“thÄ“, “forgetfulness") + ἀργός (argos, “not working").

    From Wiktionary