Dictionary entry

ἄβυσσος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament with Strong's

ἄ-βυσσος, -ον

(< Ion. βυσσός = βυθός),

1. in cl., boundless, bottomless (e.g. ἄ. πέλαγος, ἄ. πλοῦτος Æsch.).

2. [In LXX (for תְּהוֹם, Ge 1:2, al.; exc. Is 44:27, Jb 41:22 for צוּלָה, מְצוּלָה, Jb 36:16 for רַחַב) and] NT, as subst. (MM, VGT, s.v.), ἡ ἄ. (sc. χώρα), the abyss;

(a) of the sea (Ge 1:2);

(b) of the underworld, as the abode of the dead: Ro 10:7 (a paraphrase of De 30:13 LXX); as the abode of demons, Lk 8:31, Re 9:1, 2, 11, 11:7, 17:8, 20:1, 3 (Cremer, 2).†