Sisyphus

Sisyphus, a mythical king of Corinth, who for some offence he gave the gods was carried off to the nether world, and there doomed to roll a huge block up a hill, which no sooner reached the top than it bounded back again, making his toil endless.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Sistova * Sitka
Sioux
Sirdar
Siren
Sirens
Sirius
Sirkar
Sirocco
Sismondi, Jean Charles Léonard Simonde de
Sistine Chapel
Sistova
Sisyphus
Sitka
Siva
Sivaji
Six Articles
Sixtus
Sixtus IV.
Sixtus V.
Sizar
Skager-Rack
Skald

Nearby

Sisyphus in Brewer’s Dictionary of Phrase & Fable

Links here from Chalmers

Diepenbeck, Abraham Van
Euripides