Quick Definition
διαγινώσκω v. I know accurately, examine, decide
Strong's Definition
to know thoroughly, i.e. ascertain exactly
Derivation: from G1223 (διά) and G1097 (γινώσκω);
KJV Usage: (would) enquire, know the uttermost
UBS Dictionary of the Greek New Testament
verb | γινώσκω
27.3 · Learn · Learn
to learn about accurately, to get detailed information, to examine thoroughly to obtain accurate and thorough information about
56.21 · Courts and Legal Procedures · Judge, Condemn, Acquit
to decide a case, to arrive at a verdict after examination to make a judgment on legal matters, with the implication of thorough examination
1 διαγινώσκω[a] probably differs in meaning from γινώσκω[b] (27.2) in implying more thorough and detailed information being obtained.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
δια-γινώσκω ; fut. διαγνώσομαι; 1. to distinguish (Lat. dignosco), i. 6. to know accurately, ascertain exactly: τί, Acts xxiii. 15; (so in Grk. writ. fr. Hom. down). 2. in a legal sense, to examine, determine, decide, (cf. Cic. cognosco): τὰ καθ᾽ ὑμᾶς your case, Acts xxiv. 22; (2 Mace. ix. 15; Dem. p. 629, 25; p. 545, 9; al.).
Mounce Concise Greek Dictionary
διαγινώσκω diaginōskō 2x
pr. to distinguish; to resolve determinately; to examine, inquire into, judicially, Acts 23:15; 24:22*
Abbott-Smith Greek Lexicon
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).†
Moulton & Milligan — Vocabulary of the Greek NT
Liddell-Scott-Jones — Greek-English Lexicon
διαγινώσκω (diaginōskō) — to decide. διαγίγνομαι, Ionic dialectand later Attic dialect διαγίνομαι [γῑ], future -γενήσομαι: aorist διεγενόμην, also διεγενήθην [Refs 1st c.BC+]:—go through, pass, τοσάδε ἔτη [Refs 5th c.BC+]: absolutely, go through life, live, [Refs 5th c.BC+]; survive, see reading in [Refs 5th c.BC+]; ἐὰν ἄρα διαγιγνώμεθα if we live long enough, [Refs 4th c.BC+]; δ. ἀπὸ τῆς τέχνης to subsist by it, [Refs 4th c.BC+]; γενναίως δ. ἔν τινι behave nobly in.., [Refs 1st c.AD+]participle, διαγενέσθαι ἄρχων continue in the government, [Refs 5th c.BC+]; οὐδὲν ἄλλο ποιῶν διαγεγένηται ἢ διασκοπῶν he was never anything but a theorist, [Refs 4th c.BC+]
II. intervene, elapse, χρόνου μεταξὺ διαγενομένου [Refs 5th c.BC+]; οἴδαμεν.. ἤδη τῇ κρίσει ἐκείνῃ διαγεγονότα ἔτη ὀκτώ Test. cited in [Refs 4th c.BC+]