ἀντιδεῖσθαι

From LSJ

ἅλμην πιόντες ἐξαπῆλθον τοῦ βίου → they drank seawater and departed from life

Source

Greek > English (Woodhouse Verbs Reversed)

ask in return, entreat in return (see also: ἀντιδέομαι)