G4859
σύμφωνος
mutual consent
σύμφωνος, -ον (ούν, φωνή), [in LXX: Ecc.7:14 (עֻמָּה), 4Ma.7:7 4Mac 14:7 * ;] agreeing in sound. Metaphorical, harmonious, agreeing: ἐκ συμφώνου (for exx. from π., see Deiss., BS, 255), by agreement, 1Co.7:5.† (AS)
The KJV translates G4859 in the following manner:
consent (2x)
Full Thayer's lexicon entry
σύμφωνος — sýmphōnos
σύμφωνος, σύμφωνον (σύν and φωνή), from (Homer h. Merc. 51; Sophocles), Plato, Aristotle down, harmonious, accordant, agreeing; τό σύμφωνον, thing agreed upon, compact (Epictetus diss. 1, 19, 27): ἐκ συμφώνου, by mutual consent, by agreement, 1Co 7:5 (cf. Winers Grammar, 303 (285); Buttmann, § 139, 20.)
1 occurrence