ἐξ ἐπιδρομῆς

From LSJ

μηδέν' ὀλβίζειν, πρὶν ἂν τέρμα τοῦ βίου περάσῃ μηδὲν ἀλγεινὸν παθών → Count no man blessed 'til he's passed the endpoint of his life without grievous suffering. (Sophocles, King Oedipus 1529f.)

Source

Greek > English (Woodhouse)

off-hand, off hand, offhand, on the spur of the moment