αἰνιγματικῶς
From LSJ
τὸ πεπρωμένον γὰρ οὐ μόνον βροτοῖς ἄφευκτόν ἐστιν, ἀλλὰ καὶ τὸν οὐρανόν ἔχουσι → fate is unavoidable not only for mortals, but also for those who hold the heavens
Spanish
de manera enigmática, de manera enigmática u oscura, de manera oscura
Greek (Liddell-Scott)
αἰνιγματικῶς: αἰνιγματωδῶς, Σχόλ. εἰς Ἀριστοφ. Λυσ. 80.