Abyss

1. A bottomless or unfathomed depth, gulf, or chasm; hence, any deep, immeasurable, and, specifically, hell, or the bottomless pit.
2. Infinite time; a vast intellectual or moral depth.
3. (Her.) The center of an escutcheon.

This word, in its leading uses, is associated with the cosmological notions of the Hebrews, having reference to a supposed illimitable mass of waters from which our earth sprung, and beneath whose profound depths the wicked were punished.