Abbott-Smith Manual Greek Lexicon
ἐρυθρός (G2063)
2 ἐρυθρός , -ά, -όν [in LXX for אֱדֹם , Is 63:2 ; ἐ. θάλασσα for סוּף - יָם Ex 10:19 , al. ;] red : ἡ ἐ. θάλασσα , the Red Sea , Ac 7:36 , He 11:29 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain