Nyx vs. Erebus — What's the Difference?

Nyx (; Ancient Greek: Νύξ, Nýx, [nýks], 'Night') is the Greek goddess (or personification) of the night. A shadowy figure, Nyx stood at or near the beginning of creation and mothered other personified deities such as Hypnos (Sleep) and Thanatos (Death), with Erebus (Darkness).

In Greek mythology, Erebus (; Ancient Greek: Ἔρεβος, romanized: Érebos, "deep darkness, shadow"), or Erebos, is the personification of darkness and one of the primordial deities. Hesiod's Theogony identifies him as one of the first five beings in existence, born of Chaos.

(Greek mythology) Greek goddess of the night; daughter of Chaos; counterpart of Roman Nox

The dark region of the underworld through which the dead must pass before they reach Hades.

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.

The son of Chaos and brother of Nox, who dwelt in Erebus.

(Greek mythology) Greek god of darkness who dwelt in the underworld; son of Chaos; brother of Nox; father of Aether and Day