Abbott-Smith Manual Greek Lexicon
ἀρνέομαι (G720)
33 ἀρνέομαι , -οῦμαι , depon., [in LXX: Ge 18:15 ( כּחשׁ pi.), Wi 12:27 16:16 17:10 , IV Mac 8:7 10:15 *;] to deny , say no , opp. to εἰπεῖν : absol., Mt 26:70 , Lk 8:45 ; seq. ὅτι , I Jo 2:22 ; c. inf., He 11:24 . In late Gk. (MM, s.v.), c. acc. pers., to deny , refuse to acknowledge , disown : Ac 3:14 7:35 ; Ἰησοῦν , Mt 10:33 , II Ti 2:12 , I Jo 2:22 , Ju 4 ; ἑαυτόν , Lk 9:23 , II Ti 2:13 ( prove false to ). C. acc. rei (in cl. to refuse ), to deny , abjure : I Ti 5:8 , Tit 2:12 , II Ti 3:5 (cf. ἀπαρνέομαι )
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain