To lose strength and become weak; to be in a state of weakness or sickness.
To pine away in longing for something; to have low spirits, especially from lovesickness.
He languished without his girlfriend
To live in miserable or disheartening conditions.
He languished in prison for years
To be neglected; to make little progress, be unsuccessful.
The case languished for years before coming to trial.
To make weak; to weaken, devastate.
To affect a languid air, especially disingenuously.