εὔκροτος
From LSJ
τούτου δὲ συμβαίνοντος ἀναγκαῖον γίγνεσθαι πάροδον καὶ τροπὰς τῶν ἐνδεδεμένων ἄστρων → but if this were so, there would have to be passings and turnings of the fixed stars
English (LSJ)
ον,
A well-sounding, ἀνάπαιστα Alciphr.3.43. Adv. -τως Sopat. in Rh.8.14 W. II Adv. -τως, = εὐκροτήτως, applied to the elements in the body, Meno Iatr.19.27.