Obs. Sc. [Erron. form of bastaille, -ailȝe: see BASTILLE 2 a.; prob. after the substitution of bestial for bestaille in prec. word.] A wooden tower used in sieges.
c. 1470. Henry, Wallace, VII. 977. Ramsay gert byg strang bestials [ed. 1570 bastailȝeis] off tre. Ibid., XI. 877. On the north syd his bestials had he wrocht.
