(1):

(v. i.) To assume an expression of weariness or tender grief, appealing for sympathy.

(2):

(v. i.) To cause to droop or pine.

(3):

(v. i.) To become languid or weak; to lose strength or animation; to be or become dull, feeble or spiritless; to pine away; to wither or fade.

(4):

(n.) See Languishiment.