intransitive verb.
To hang bending downward; to sink or hang down, as an animal, plant, etc., from physical inability or exhaustion, want of nourishment, or the like.
intransitive verb.
To grow weak or faint with disappointment, grief, or like causes; to be dispirited or depressed; to languish.
intransitive verb.
To proceed downward, or toward a close; to decline.
noun.
A drooping.
transitive verb.
To let droop or sink.