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
avium avii N N :: pathless region (pl.), wild waste, wilderness, desert; lonely/solitary places
āvĭum,¹² ĭī, n. (avius), lieu non fréquenté, écarté : Her. 4, 29 ; employé surtout au pl., v. avia 2.