Abbott-Smith Manual Greek Lexicon
ἀ-κατά-γνωστος (G176)
1 **† ἀ-κατά-γνωστος , -ον ( καταγινώσκω ), [in LXX: II Mac 4:47 ;] not open to just rebuke , irreprehensible : Tit 2:8 (v. Cremer, 676; and for other exx., MM, VGT , s.v.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain