ἐνεστέασι

From LSJ

φιλεῖ δέ τοι, δαιμόνιε, τῷ κάμνοντι συσπεύδειν θεός → you know, my good fellow, when a man strives hard, a god tends to lend him aid

Source

French (Bailly abrégé)

3ᵉ pl. ion. pf. de ἐνίστημι.

Russian (Dvoretsky)

ἐνεστέασι: ион. 3 л. pl. pf. к ἐνίστημι.