He is termed Abaddon, the angel of the bottomless pit—the prince of darkness.
After that, they settled down to planning the Battle of Abaddon.
But we have this safeguard against such visits, that we never represented ourselves as intimate with the opinions of Abaddon.
Now his desire should be satisfied, but no, "Sheol and Abaddon are never satisfied, and the eyes of man are never satisfied."
These expressions, and the “destroyer” Abaddon or Apollyon, of Revelations ix.
Abaddon late 14c., used in Rev. ix.11 of "the angel of the bottomless pit," and by Milton of the pit itself, from Heb. Abhaddon "destruction," from abhadh "he perished." The Gk. form was Apollyon (q.v.).