[Name] Magnum Innominandum[6] [Epithet(s), Other name(s)] Great Not-to-Be-Named, The Nameless Mist, N'yog-Sothep, Milk of the Void [References] DR5, rpg [Description] 
According to H. P. Lovecraft, this being is the spawn of Azathoth (making it on par with the Magnum Tenebrosum and Cxaxukluth) and is associated with, and possibly the progenitor of, Yog-Sothoth.[7] Little is known about this god, but it is considered to be extremely dangerous to sorcerers, hence its title "the unnameable" (archaic terminology, meaning not to be summoned or ritually named in an incantation.