εὐτυχία
From LSJ
οὕτως εἴη ἡμίν ὁ Θεός βοηθός καὶ τὸ ἱερὸν Αὐτοῦ Εὐαγγέλιον ὧδε ἐμφανισθέντα-ὁρκισθέντα → so help us God and Ηis holy Gospel the things here declared and sworn
English (LSJ)
Ion. -ιη, ἡ,
A good luck, success, Pi.O.6.81, Hdt.1.32, Th.7.77, etc.; τὴν ἀτυχίαν εἰς εὐ. αἰτοῦμαι μεταστῆναι Antipho 2.4.4; defined, Arist.Rh.1361b39; ἐπ' εὐτυχίᾳ, -ίαισιν, E.IT1490 (anap.), Ar.Ec.573 (lyr.); πολλῇ εὐ. χρῆσθαι Pl.Men.72a; κατά τινα θείαν εὐ. Id.Lg.798b; ἡ κατὰ πόλεμον εὐ. Th.1.120: pl., pieces of good luck, successes, Id.2.44.