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.17.2Acts.18.19
διελέγετο He was reasoning Acts.17.17Acts.18.4Jude.1.9
was talking Acts.20.7
διαλεγόμενοσ reasoning Acts.19.8Acts.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]