Obs. rare. In 6 vyre-. [a. OF. vireton (= Prov. viraton), f. virer to turn: cf. VIRE sb.1, and Sp. and Pg. virote.] A cross-bow bolt so constructed as to rotate on its axis while flying.
c. 1500. Melusine, 269. They … saylled foorth by such wyse that it semed as it had be the vyreton of a Crosbow. Ibid., 287. No sarasyn durste hym abyde, but casted at him fro ferre sperys, darts, stones & arowes, vyretons & quarelles, with theire crosbowes.
