σύμφημι,
future -φήσω[[ 5th-6th c.BC: Plato Philosophus “Protagoras” 357b, +others] Refs 5th c.BC+]: aorist 1 συνέφησα [[ [prev. author] “R.” 342e, “Sph.” 236d, +others: ] Refs]aorist 2 συνέφην frequently in [[ 5th-6th c.BC: Plato Philosophus (see. below), Elean συνέφα “Schwyzer” 416.5 ] Refs 5th c.BC+]:—assent, approve, or agree fully, [[ 4th-5th c.BC: Aeschylus Tragicus “Prometheus Vinctus” 40, 5th c.BC: Sophocles Tragicus “Philoctetes” 1310, etc.; ξύμφημι κἀγώ [prev. author] “El.” 1257; ξ. δή σοι [prev. author] “Aj.” 278, compare 5th c.BC: Euripides Tragicus “Hippolytus” 266 (_anapaest meter_), 5th-6th c.BC: Plato Philosophus “Timaeus” 72d, etc. ] Refs 5th c.BC+]
__2 with accusative of things, concede, agree to, grant, ταῦτα.. πάντες ἄρα συνέφασαν [[ [prev. author] “Smp.” 177e, compare “Sph.” 247a, “Prt.” 330d, 5th-6th c.BC: Xenophon Historicus “Anabasis” 5.8.8, etc.: hence _absolutely_, σύμφημί ] Refs 5th c.BC+] (σοι) I grant you, [[ 5th-6th c.BC: Plato Philosophus “Respublica” 403c, 608b ] Refs 5th c.BC+]; frequently in Platonic dialogue, σύμφαθι ἢ ἄπειπε say yes or no,[[ [prev. work] 523a, compare “Grg.” 500e; συνέφη [prev. author] “Phd.” 102d, +others ] Refs]
__3 with accusative et infinitive, agree that.., [[ 5th c.BC: Sophocles Tragicus “Oedipus Tyrannus” 553, 5th-6th c.BC: Plato Philosophus “Leges” 831b, etc.] Refs 5th c.BC+]; σ. τῷ νόμῳ ὅτι καλός, ={σ. τὸν νόμον καλὸν εἶναι}, [[ NT.Rom.7.16. ] NT]
__4 with infinitive future, promise, [[ 5th-6th c.BC: Xenophon Historicus “Historia Graeca (Hellenica)” 5.2.5. ] Refs 5th c.BC+]