Abbott-Smith Manual Greek Lexicon
ἀπάτωρ (G540)
1 * ἀπάτωρ , -ορος, ὁ, ὴ ( ἀ- neg., πατήρ ); fatherless . without father (MM, VGT , s.v.), i.e., with no recorded genealogy: He 7:3 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain