Slaanesh

Slaanesh is the name given to the malevoent chaos deity of lust, excess, pleasure, perfection and hedonism. Slaanesh typically appears in a form which is female on the right side and male on the left with two sets of horns rising from its flowing golden hair, however it can assume any form or gender it pleases. It is also known by a multitude of titles such as the Prince of Chaos, Prince of Excess, Prince of Pleasure and Lord of Dark Delights. To the Eldar, who do not name the god, it is referred to only by the Lovecraftian titles of She Who Thirsts, She Who Is Not Named, The Great Enemy, The Great Serpent and so forth. The name Slaanesh derives from Slaaneth - the god's name in the language of Chaos, (Slaa meaning "ecstasy", "pleasure", etc, Neth meaning "lord of", "master of", or "prince of"; hence, the Prince of Pleasure). The correct adjective of things associated with Slaanesh (such as its worshippers) is "Slaaneshi". Slaanesh was fully born at the moment of the Fall of the Eldar. The birth of Slaanesh created the Eye of Terror and slew most of the Eldar except those far enough away from the Eldar homeworlds to escape. This event also slew many of the Eldar Gods.