Lexical Definition

‎διαλέγομαι‎ dialégomai (dee-al-eg'-om-ahee) to dispute G:V
middle voice from ‎διά‎ and ‎λέγω‎

dispute, preach (unto), reason (with), speak.

Usage: 9 forms in 15 verses
Form Translated As     In Verse(s)
διελέχθησαν they had been discussing Mark.9.34
διελέξατο he reasoned Acts.17.2 • Acts.18.19
διελέγετο He was reasoning Acts.17.17 • Acts.18.4 • Jude.1.9
was talking Acts.20.7
διαλεγόμενοσ reasoning Acts.19.8 • Acts.19.9
διαλεγόμενον reasoning Acts.24.12
διαλεγόμενοι reasoning LXX.Exod.6.27
διαλεγομένου When reasoning Acts.24.25
as is talking Acts.20.9
διαλέγομαι reason LXX.Isa.63.1
διαλέγεται addresses Heb.12.5

Abbott-Smith

δια-λέγομαι (mid. of διαλέγω, to pick out, distinguish, as depon.), [in LXX: Ex 6:27, Is 63:1 (דּבר pi.), Jg 8:1 (ריב), I Es 8:46, Es 5:2, Si 14:20, II Mac 11:20 * ;]
to converse with, discourse (v. Cl. Rev., i, 45), discuss, argue: Ac 18:4 19:8, 9 20:9; c. dat. pers., Ac 17:17 18:19 20:7, He 12:5; seq. πρός, Mk 9:34, Ac 17:17 24:12; περί Ac 24:25, Ju 9; ἀπὸ τ. γραφῶν, Ac 17:2.†

Abbott-Smith References

Book Refs
Exodus 6:27
Judges 8:1
Ezra 5:2
Isaiah 63:1
Mark 9:34
Acts 17:2 · 17:17 · 18:4 · 18:19 · 19:8 · 19:9 · 20:7 · 20:9 · 24:12 · 24:25
Hebrews 12:5
Jude 1:9

Liddell-Scott-Jones

διαλέγω,

pick out, [Refs 5th c.BC+]; πτῶμα glean fallen olives, [Refs]; compare διαλέγειν· ἀνακαθαίρειν, [Refs 5th c.AD+]; select, separate, [Refs 5th c.BC+]; examine, check documents, [Refs 2nd c.BC+]

__II διαλέγων τὴν ὀπήν picking open the hole, to escape, [Refs 5th c.BC+]; compare διαλέξαι· διορύξαι, [Refs 5th c.AD+]
__B as deponent verb, διαλέγομαι: future διαλέξομαι [Refs 5th c.BC+] also -λεχθήσομαι [Refs 4th c.BC+]; -λεγήσομαι [Refs 3rd c.BC+]: aorist διελεξάμην [Refs 8th c.BC+]; Aeolic dialect imperative ζάλεξαι [Refs 7th c.BC+], and always in Attic dialect Inscrr., [Refs]: less frequently aorist 2 διελέγην [Refs 4th c.BC+]; 3rd.pers. plural διέλεγεν [Refs]: perfect διείλεγμαι [Refs 5th c.BC+]: pluperfect διείλεκτο [Refs 4th c.BC+], but in passive sense, [Refs 5th c.BC+]:—hold converse with, with dative person, μοι ταῦτα φίλος διελέξατο θυμός [Refs 8th c.BC+]; δ. τί τινι or πρός τινα, discuss a question with another, [Refs 5th c.BC+]; δ. ὅρους talk in definitions, [Refs 5th c.BC+]; δ. τινὶ μὴ ποιεῖν argue with one against doing, [Refs 4th c.BC+]; οἱ νόμοι οὐδὲν τούτῳ δ. have nothing to say to him, concern him not, [Refs 4th c.BC+]to argue on.., [Refs 4th c.BC+]; or against.., [Refs]: absolutely, to discourse, reason, [Refs 5th c.BC+]; reason, calculate, ={διαλογίζομαι}, [Refs]:—the active in middle sense, [Refs 5th c.BC+]
__B.2 in Philosophy, practise dialectic, elicit conclusions by discussion, οὐκ ἐρίζειν ἀλλὰ δ. [Refs 5th c.BC+]
__B.3 later, discourse, lecture, [Refs 2nd c.AD+]
__B.4 use a dialect or language, κατὰ ταὐτά τισι δ. [Refs 5th c.BC+]; write in prose, opposed to ποιεῖν, [Refs 1st c.BC+]
__B.4.b speak articulately, [Refs 4th c.BC+]
__B.5 in Attic dialect, euphemistic for συνουσιάζω, have intercourse, [Refs 5th c.BC+]
__B.6 have dealings with, [Refs]