Abbott-Smith Manual Greek Lexicon
δια-γινώσκω (G1231)
2 δια-γινώσκω (v. previous word), [in LXX chiefly for ידע , and cf. II Mac 9:15 ;] to distinguish, ascertain exactly : Ac 23:15 As Athen. law-term, to determine : τὰ καθ’ ὑμᾶς , your case, Ac 24:22 (Cremer, 673).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain