ἀμφεστᾶσι

From LSJ

ἀλλὰ ῥῦσαι ἡμᾶς ἀπὸ τοῦ πονηροῦ → but deliver us from evil

Source

Russian (Dvoretsky)

ἀμφεστᾶσι: Soph. 3 л. pl. pf. к ἀμφίστημι.