Source : Webster's Revised Unabridged Dictionary (1913)

Droop \Droop\, v. i. [imp. & p. p. {Drooped}; p. pr. & vb. n.
   {Drooping}.] [Icel. dr?pa; akin to E. drop. See {Drop}.]
   1. 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. ``The purple
      flowers droop.'' ``Above her drooped a lamp.'' --Tennyson.

            I saw him ten days before he died, and observed he
            began very much to droop and languish. --Swift.

   2. To grow weak or faint with disappointment, grief, or like
      causes; to be dispirited or depressed; to languish; as,
      her spirits drooped.

            I'll animate the soldier's drooping courage.
                                                  --Addison.

   3. To proceed downward, or toward a close; to decline. ``Then
      day drooped.'' --Tennyson.