Lexical Definition

‎συνελαύνω‎ synelaúnō (soon-el-ow'-no) to bring together G:V
from ‎σύν‎ and ‎ἐλαύνω‎

+ set at one again.

Abbott-Smith

** συν-ελαύνω [in LXX: II Mac 4:26, 42 5:5 * ;]
to drive together, force together: εἰς εἰρήνην, Ac 7:26, Rec. (WH, RV, συνήλλασσεν).†

Abbott-Smith References

Book Refs
Acts 7:26

Liddell-Scott-Jones

συνελαύνω,

future -ελάσω []: Epic dialect aorist συνέλασσα: perfect participle συνεληλάμενος [Refs 4th c.BC+]: pluperfect -ηλάσμην[LXX]: aorist passive -ηλάσθην[LXX+8th c.BC+]present and Epic dialect aorist (except σὺν δ᾽ ἤλασε in tmesi); he uses the form ξυν- where required by the metre:—drive together, ληΐδα δ᾽ ἐκ πεδίου συνελάσσαμεν [Refs 8th c.BC+]; σὺν δ᾽ ἤλασ᾽ ὀδόντας drove his teeth together, [Refs 8th c.BC+]; hammer together, [Refs 1st c.AD+]; weld iron, [Refs 5th c.BC+]; draw together, συνέλασσε κάρη χεῖράς τε [Refs]; drive, force, τινὰ εἰς ὀλοὴν κῆρα [Refs 2nd c.AD+]:— passive, to be driven or forced into a contracted space, compressed, [Refs 4th c.BC+]; εἰς βραχὺ διάζωμα σ. to be contracted into.., [Refs 5th c.BC+]

__2 constrain, force, τινὰ ἀποστῆναι τῶν οὐ δικαίως αὐτῷ προσηκόντων [Refs 5th c.AD+]; σ. τινὰ πρὸς εὐγνωμοσύνην bring him to reason, [Refs 6th c.AD+]; εἰς τέλος σ. bring to an end, [Refs 6th c.AD+]
__II match in combat, set to fight, θεοὺς ἔριδι ξυνελάσσαι [Refs 8th c.BC+]
__II.2 intransitive, ἔριδι ξυνελαυνέμεν meet in quarrel, [Refs 8th c.BC+]