STYX, river, bordering Hades, to be crossed by all the dead
SUDRAS, Hindu laboring caste
SURTUR, leader of giants against the gods in the day of their destruction (Norse mythology)
SURYA, Hindu god of the sun, corresponding to the Greek Helios
SUTRI, Orlando's birthplace
SVADILFARI, giant's horse
SWAN, LEDA AND
SYBARIS, Greek city in Southern Italy, famed for luxury
SYLVANUS, Latin divinity identified with Pan
SYMPLEGADES, floating rocks passed by the Argonauts