Palsy, << PAWL zee, >> means the same as paralysis, the loss of movement or sensation (see Paralysis ). The term palsy is most commonly used in connection with certain types of paralysis. Some kinds of palsy are caused by continued pressure on a nerve. Shaking palsy (paralysis agitans), an involuntary tremor of the muscles, is another name for Parkinson’s disease. Chemopallidectomy is an operation for this tremor.