the treatment of diseases, injuries, and other physical ailments with baths and bathing, especially in natural mineral waters. Origin of balneotherapy.
The name Percy originated in France. It means piercing the valley which also can mean fighting the lower side, the evil side, to reach justice. Jackson means son of Jack. I know, I don't get it either.
Percy is a cheeky green saddletank engine who was brought to Sodor to help run the railway during the big engines' strike. His favourite job is to deliver the Post Train. He works on Thomas' Branch Line as a goods engine.