The Abyss (n.) is the “first essential clearing concealment, the unfolding of truth.
Definition.com
Definition.com
The Abyss (n.) is not a denial of any ground, rather it is the affirmation of grounding in its hidden expanse and distance.
Definition.com
The Abyss (n.) is the ungrounded character of the truth of historical being
Definition.com
The Abyss (n.) is the appropriated [beginning] of the going-under [Untergang], presence’s self-concealing.
Definition.com
The Abyss (n.) is the ground of our history, over which we wander self-satisfied and busy as over a thinly covered pit.