Abbott-Smith Manual Greek Lexicon
ἐκδικέω (G1556)
6 † ἐκδικέω , -ῶ ( ἔκδικος ), [in LXX for פָּקַד , נָקַם , שָׁפַט , etc. ;] to vindicate : c. acc pers., Lk 18:3 , 5 . to avenge : c. acc pers., ἑαυτούς , Ro 12:19 ; c. acc rei, παρακοήν , II Co 10:6 ; αἷμα , Re 6:10 19:2 (Cremer, 203; for exx. from π. in both senses, v. MM, Exp. , xii).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain