Abbott-Smith Manual Greek Lexicon
συν-βάλλω (G4820)
6 συν-βάλλω (Rec. συμ- ), [in LXX: II Ch 25:19 ( גּרה hith.), Is 46:6 ( זוּל ), Je 50 (43):3 ( סוּת hi.), Wi 5:8 , al. ;] to throw together , hence, of speech (seq. λόγους , Eur., al.), to discuss, confer (sc. λόγους ): c. dat. pers., Lk 11:53 , WH, mg., Ac 17:18 ; seq. πρὸς ἀλλήλους , Ac 4:15 ; to reflect, consider, ponder : ἐν τ. καρδίᾳ , Lk 2:19 ; to meet with, fall in with : Ac 20:14 ; in hostile sense, εἰς πόλεμον , c. dat. ( εἰς μάχην , Polyb.), Lk 14:31 ; mid., to contribute (Polyb., al.; cf. MM, xxiv): Ac 18:27 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain