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
intricate: P. and V. ποικίλος, ἄπορος, ἀμήχανος (rare P.), ἀσαφής, V. δύσκριτος, ἄσκοπος, δυστέκμαρτος, δυσμαθής; see intricate.