Learn how to say Lethargy correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word lethargy:
a lack of energy and enthusiasm:
there was an air of lethargy about him
Medicine a pathological state of sleepiness or deep unresponsiveness and inactivity:
a history of weight loss, lethargy, and fluid retention
late Middle English: via Old French from late Latin lethargia, from Greek lēthargia, from lēthargos ‘forgetful’, from the base of lanthanesthai ‘forget’