Abbott-Smith Manual Greek Lexicon
βυθός (G1037)
1 βυθός , -οῦ, ὁ , [in LXX: Ex 15:5 , Ne 9:11 ( מְצוֹלָה ), Ps 67 (68):22 68 (69):2 , 15 106 (107):24 ( מְצוּלָה )* ;] the bottom . the depth of the sea, the deep sea : II Co 11:25 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain