What is the meaning of Droop?

To hang downward; to sag.

To slowly become limp; to bend gradually.

To lose all energy, enthusiasm or happiness; to flag.

To allow to droop or sink.

To proceed downward, or toward a close; to decline.

Something which is limp or sagging.

A condition or posture of drooping.

A hinged portion of the leading edge of an aeroplane's wing, which swivels downward to increase lift during takeoff and landing.

singular past indicative of druipen

Source: wiktionary.org