adv. and a. [f. THWART a. + -WISE.]
A. adv. Crosswise, transversely.
1589. P. Ive, Fortif., 16. Lay a trauers of trees in the bottome laying them thwart wise in the work.
1661. Lovell, Hist. Anim. & Min., 191. Crab, Cancer, they goe thwartwise.
1894. Crockett, Mad Sir Uchtred, v. The troop passed thwartwise over the mountain steep. Ibid. (1899), Black Douglas (1900), 468. Margaret rode thwartwise to intercept her.
B. adj. Situated or extending transversely; cross, transverse.
1890. Clerke, Syst. Stars, 309. The directly measurable, thwartwise part of its motion.
1891. Dublin Rev., Jan., 157. Compounded of thwartwise and end-on speed.