Dictionary entry

βαθύς

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

βαθύς (gen. -έως, vernac., Lk 24:1; Bl., § 8, 5), -εῖα, -ύ,

[in LXX chiefly for עמק;]

deep; Jo 4:11; metaph., ὄρθρου βαθέως (v. supr.), early dawn, Lk 24:1; ὕπνος, Ac 20:9; τὰ β. τοῦ Σατανᾶ, Re 2:24.†