/ ˈlæŋgə(r); NAmE / noun
[ U , sing. ] ( literary ) the pleasant state of feeling lazy and without energy :
A delicious languor was stealing over him.
► lan·guor·ous / ˈlæŋgərəs; NAmE / adjective :
a languorous pace of life
► lan·guor·ous·ly adverb
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WORD ORIGIN
Middle English : via Old French from Latin , from languere , related to laxus loose, lax. The original sense was illness, distress , later faintness, lassitude ; current senses date from the 18th cent., when such lassitude became associated with a romantic longing.