Tartarus

Proper noun

Tartarus

1. (Greek, Roman) A dark and gloomy part of the realm of Hades, reserved for the damned and the wicked, such as the Titans; an equivalent of hell in Greek and Roman mythology.
   • […] them with Fire and hoſtile Arms / Fearleſs aſſault, and to the brow of Heav'n / Purſuing, drive them out from God and bliſs, / Into thir place of puniſhment, the Gulf / Of Tartarus, which ready opens wide / His fiery Chaos to receave thir fall.1667, John Milton, “Book VI”, in Paradise Lost. […], London: […] [Samuel Simmons], and are to be sold by Peter Parker […]; [a]nd by Robert Boulter […]; [a]nd Matthias Walker, […], →OCLC; republished...
2. (figuratively) Any hellish place; a dark gloomy chasm or pit.
   • We lay there hour after hour in terror and misery of mind so deep that I will not attempt to describe it, and listened to the wild storm-voices of that Tartarus, as, set to the deep undertone of the spur opposite against which the wind hummed like some awful harp, they called to each other from...1886 October – 1887 January, H[enry] Rider Haggard, She: A History of Adventure, London: Longmans, Green, and Co., published 1887, →OCLC
   • After arranging a rendezvous, we separate. Mattie and Liz go off in one direction, and Em and I in another. From this our progress seems like a descent into Tartarus. Em pauses before a miserable-looking saloon, pushes open the low, swinging door, and we go in.1890, William Booth, “Round the slums of New York”, in In Darkest England and the Way Out, page 161