Abbott-Smith Manual Greek Lexicon
ἀνάγαιον (G508)
2 (KJV) * ἀνάγαιον (Rec. ἀνώγεον ; on the form, v. Rutherford, NPhr. , 357 f.; MM, VGT , s.v.), -ου, τό ( ἀνά , γῆ ), an upper room : Mk 14:15 , Lk 22:12 .† SYN. : ὑπερῷον .
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain