EREBUS
Erebus
(noun) (Greek mythology) Greek god of darkness who dwelt in the underworld; son of Chaos; brother of Nox; father of Aether and Day
Source: WordNet® 3.1
Er"e*bus, n. Etym: [L., fr. Gr.
1. (Greek Myth.)
Definition: A place of nether darkness, being the gloomy space through
which the souls passed to Hades. See Milton's "Paradise Lost," Book
II., line 883.
2. (Greek Myth.)
Definition: The son of Chaos and brother of Nox, who dwelt in Erebus.
To the infernal deep, with Erebus and tortures vile. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition