θείᾳ τύχῃ
From LSJ
κρειττότερον ἐστὶν εἰδέναι ἐν μέσῃ τῇ Πόλει φακιόλιον βασιλεῦον Τούρκου, ἢ καλύπτραν λατινικήν → I would rather see a Turkish turban in the midst of the City than the Latin mitre
Greek > English (Woodhouse)
by divine interposition, by divine intervention, by the interposition of the gods