ἐγκοληβάζω
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.)
English (LSJ)
in Ar.Eq.263,
A gulp down, swallow up, v. Sch. ad loc., Hsch.; also expld. by ἐπὶ κόλοις βαίνειν, Suid. s.v. ἐκολαβήσας.