Obs. rare. In 6 balastriar. [a. OF. balestrier:L. ballistrārius; cf. med.L. balestrārius.] An arbalestrier, a crossbow-man.
1440. Shirley, Dethe K. James (1818), 23. Ane heghe ynstrument of tymbire, upon which balastriars and bowyers usyn to hong thare bowes.
¶ See also BALLIST- for modern derivatives from L.