adv. Sc. [f. WEST adv. + BY adv. 1.] In a westerly direction, westwards.
1790. A. Shirrefs, Poems, 72. We met wi Bessy
Wha tauls ye gaed west-by a wee before.
1864. Latto, Tam. Bodkin, xxvii. 283. Tibbies letters bein aye left wastbye at Janet Wabsters to be forwarded.