Available Definitions:
1) v. i. - 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.
2) v. i. - To grow weak or faint with disappointment, grief, or like causes; to be dispirited or depressed; to languish; as, her spirits drooped.
3) v. i. - To proceed downward, or toward a close; to decline.
4) v. t. - To let droop or sink.
5) n. - A drooping; as, a droop of the eye.