Lexical Definition

‎συνίημι‎ syníēmi (soon-ee'-ay-mee) to understand ^G:V
from ‎σύν‎ and (to send)

consider, understand, be wise.

• to put together, i.e. (mentally) to comprehend
• by implication, to act piously

Abbott-Smith

συν-ίημι and συνίω (v. Bl., § 23, 7), [in LXX chiefly for בּין hi., שׂכל hi. ;]
1. to bring or set together.
2. Metaph., to perceive, understand: Mt 13:13-15 (LXX), 19 15:10, Mk 4:9 (WH, mg.), 12 7:14 8:17, 21 Lk 8:10, Ac 7:25 28:26, 27, Ro 15:21 (LXX), II Co 10:12; c. acc. rei, Mt 13:23, 51, Lk 2:50 18:34 24:45; seq. ὅτι, Mt 16:12 17:13; seq. quæst. indir., Eph 5:17; ἐπὶ τ. ἄρτοις, Mk 6:52; as subst., συνίων (ὁ σ., WH, mg.), a man of understanding, i.e. in moral and religious sense, Ro 3:11 (LXX).†

Abbott-Smith References

Liddell-Scott-Jones

συνίημι,

also ξυν-, 2nd pers. singular ξυνίης [ῑ] [Refs 5th c.BC+]; 3rd.pers. singular and plural συνίει, συνίουσι, [LXX]; imperative ξυνίει [Refs 8th c.BC+]; 3rd.pers. singular subjunctive συνιῇ [Refs 5th c.BC+]; infinitive συνιέναι, Epic dialect -ῑέμεν[LXX+8th c.BC+]; participle ξυνῑείς [LXX+5th c.BC+]: imperfect συνίην [Refs 3rd c.AD+]; συνίειν (assuming variant) [Refs 2nd c.AD+]; 3rd.pers. singular ξυνίει [Refs 5th c.BC+]; 3rd.pers. plural ξυνίεσαν [Refs 5th c.BC+], Epic dialect ξύνιεν [Refs 8th c.BC+]: future συνήσω [Refs 5th c.BC+]: aorist 1 συνῆκα [Refs 5th c.BC+]; Epic dialect ξυνέηκα [Refs 8th c.BC+]; but aorist 2 imperative ξύνες, [Refs 5th c.BC+]; plural σύνετε variant in [NT]; participle συνείς [Refs 5th c.BC+] and ; Aeolic dialect σύνεις [Refs 7th c.BC+]; Doric dialect infinitive συνέμεν [Refs 5th c.BC+]: perfect συνεῖκα [Refs 2nd c.BC+]; Doric dialect[Refs 1st c.AD+]; perfect participle συνεικώς probable reading in [Refs 8th c.BC+] we find of present, only imperative ξυνίει [Refs 8th c.BC+]; ofimperfect, 3rd.pers. plural ξύνιεν for ξυνίεσαν, [Refs 8th c.BC+]; of aorist 1, Epic dialect 3rd.pers. singular ξυνέηκ; of aorist 2, imperative ξύνες [Refs]; of aorist 2 middle, 3rd.pers. singular ξύνετο [Refs 8th c.BC+]; subjunctive 1st pers. plural συνώμεθα [Refs 8th c.BC+]; all except the last form with ξυν-, though seldom required by the verse. [As in ἵημι, the 1st pers. syllable is short in Epic dialect, long in Trag. and Comedy texts: [Refs 8th c.BC+] ξυνιημι in a dactylic verse, [Refs 5th c.BC+] ξυνιημι in an iambic trimeter, [Refs 4th c.BC+]

__I bring or set together, in hostile sense, τίς τ᾽ ἄρ σφωε.. ἔριδι ξυνέηκε μάχεσθα; [Refs 8th c.BC+]; but ἀμφοτέρῃς.. ἕνα ξυνέηκεν ὀϊστόν shot one arrow at both together, [Refs 5th c.AD+]
__I.2 middle, come together, come to an agreement, ὄφρα.. συνώμεθα.. ἀμφὶ γάμῳ [Refs 8th c.BC+]
__I.3 send herewith, [Refs 3rd c.BC+]
__II metaphorically, perceive, hear, frequently in [Refs 8th c.BC+] (who also has middle in this sense, ἀγορεύοντος ξύνετο [Refs 8th c.BC+]; καὶ κωφοῦ συνίημι Orac cited in [Refs 8th c.BC+]
__II.2 to be aware of, take notice of, observe, τοῖιν [Refs 8th c.BC+]: with accusative, [Refs 5th c.BC+]: followed by a relative, ξύνες δὲ τήνδ᾽, ὡς.. χωρεῖ [Refs 6th c.BC+]
__II.3 understand, ξ. ἀλλήλων understand one another's language, [Refs 5th c.BC+]; εὖ λέγοντος.. τοῦ Δελφικοῦ γράμματος οὐ σ. [Refs 5th c.BC+] to the intelligent, [Refs 6th c.BC+]; in Comedy texts dialogue, parenthetically, συνίη; like{μανθάνεις}; Latin tenes? [Refs 4th c.BC+]; οὐχὶ ξυνίη; [Refs 5th c.BC+]: also followed by a clause, οὐ ξυνιᾶσιν ὅκως.. [Refs 5th c.BC+]; σ. τὸ γράμμα ὃ βούλεται [Refs 5th c.BC+]: also, like other Verbs of perception, with participle, ξυνιᾶσι τιμώμενοι [Refs 3rd c.AD+]; οὐ συνίης καταναλίσκω; [Refs 1st c.AD+]

_{LSJ Scripture Refs: LXX.1Kgs.18.15* ☩ LXX.1Kgs.2.10 ☩ LXX.1Kgs.18.14* ☩ Mark.7.14}