sisyphus, n. [L. Sisyphus, Sisyphus, fr. Gr. .].
A king of Corinth, son of Æolus, famed for his cunning. He was killed by Theseus, and in the lower world was condemned by Pluto to roll to the top of a hill a huge stone, which constantly rolled back again, making his task incessant. [1913 Webster]