Styx definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Gr. Myth. the river encircling Hades over which Charon ferries the souls of the dead
Origin: Classical Latin ; from Classical Greek literally , the Hateful, origin, originally , icy cold, probably akin to Russian stygnut', to freeze, grow stiff
Styx definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
noun Greek Mythology
The river across which the souls of the dead are ferried, one of the five rivers in Hades.
Origin: Latin, from Greek Stux.