adv. In the manner of a castle.
c. 1600. Norden, Spec. Brit. Cornw. (1728), 55. An auntient howse castlewise buylded.
1820. Erdeswicke, Surv. Staffordsh., 300. In Rushall is a fair seat of a house being built about with a wall, and a gatehouse of stone, all embattled castle-wise.
1831. J. Wilson, in Blackw. Mag., XXX. 478/1. Clouds piled up all round about him castlewise and cathedral-fashion.