παρέργως

κοινὴ γὰρ ἡ τύχη καὶ τὸ μέλλον ἀόρατον → fortune is common to all, the future is unknown | fortune is common to all and the future unknown | fate is common to all and the future unknown

French (Bailly abrégé)

adv.
d'une manière accessoire ; superficiellement.
Étymologie: παρά, ἔργον.

παρέργως: мимоходом, между прочим Plat., Dem.