Also bastle-. [f. bastel, var. of BASTILE + HOUSE.] A fortified house, usually having the lower floors arched over.
1544. Exped. Scotl., in Arb., Garner, I. 125. Divers bastel and fortified houses.
1849. Mem. Kirkaldy Gr., xxi. 242. The Potterrow Port, an arch between two bastel houses.
1884. Programme Archæol. Inst. Newcastle, The Mediæval Castles, Towers, and Bastle-houses in Northumberland.
