From Longman Dictionary of Contemporary Englishdroopdroop /druːp/ verb 1 BEND[intransitive, transitive] to hang or bend down, or to make something do this The plant needs some water – it’s starting to droop. His eyelids began to droop (=close, because he was sleepy). Jessie drooped her head.2 SAD/UNHAPPY[intransitive] to become sad or weak Our spirits drooped as we faced the long trip home. —droop noun [singular] —droopy adjective a droopy moustache→ See Verb table
Examples from the Corpus
droop• Can you water the plants? They're starting to droop.• Twice I ran perilously close to the edge, my eyes dazzled and eyelids drooping.• Towards the end of his harangue his head grew heavy, his eyelids drooped, and his speech became thick.• He watered the vines so little that the leaves drooped and the tendrils withered.• Haig and Kendall seemed almost to droop as the adrenalin drained out of them.• Consumer spending could revive the drooping economy.• For a day or two this tactic was mildly successful, but eventually even Auster began to droop from the monotony.• Most of the vines looked lifeless, their leaves drooping from the woody stems and curling into cylinders.• Her eyes were just drooping into sleep when she snapped back into consciousness.• One of its shoulder straps had drooped to her upper arm.• These flowers are beginning to droop. You'd better water them.From Longman Business Dictionarydroopdroop /druːp/ verb [intransitive] if prices, sales etc droop, they start to fallIn Tokyo, share prices drooped during the Emperor’s illness.→ See Verb tableOrigin droop (1200-1300) Old Norse drúpa 