Abbott-Smith Manual Greek Lexicon
συμ-φωνέω (G4856)
6 συμ-φωνέω , -ῶ , [in LXX: Ge 14:3 ( חבר ) II Ki 12:8 (9) ( אוֺת ni.), Is 7:2 ( נוּחַ ), IV Mac 14:6 * ;] prop., to agree in sound, be in harmony (Plat., Arist.). Metaph., to agree with, agree together : Lk 5:36 ; c. dat. rei, Ac 15:15 ; seq. περί , Mt 18:19 ; pass., c. dat. pers., συνεφωνήθη ὑμῖν , Ac 5:9 ; to agree as to a price (Polyb., Diod.): c. dat. pers., gen. pret., Mt 20:13 ; seq. μετά . . . ἐκ , ib. 2 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain