τά γε μὰν λίνα πάντα λελοίπει ἐκ Μοιρᾶν → but all the thread granted him by the Fates had run out
circum-ăro: āre, v. a.,I to plough around, Liv. 2, 10, 12; Plin. 18, 3, 3, § 9.