[CROSS- 4.] A light that comes athwart the direction of another light and illuminates parts that it leaves in shade; in pl. lights whose rays cross each other. Often fig.
1851. H. Melville, Moby-Dick, iii. 11. Every way defaced, that in the unequal cross-lights in which you viewed it.
1875. Jowett, Plato (ed. 2), III. 25. There is no use in turning upon him the cross lights of modern philosophy.
Mod. The windows on other sides are to be darkened, so as to avoid cross-lights.
Hence Cross-lighted ppl. a.
1884. Nonconf. & Indep., 3 July, 642/1. Mr. Biggar in his odd, crosslighted way, voting against his own party.