σύμφημι
σύμφημι
fut. -φήσω
aor1 συνέφησα
aor2 συνέφην
to assent, approve, or agree fully, Aesch., etc.
c. acc. rei, to concede, agree to, grant, Plat., Xen.; absol., ξύμφημί σοι I grant you, Plat.; ξύμφαθι ἢ ἄπειπε say yes or no, Plat.
c. acc. et inf. to agree that . . , Soph., Plat.
c. inf. fut. to promise, Xen.