[f. TRACE sb.2 + -ER1.] A trace-horse; also, a trace-horse boy.
1839. D. D. Black, Hist. Brechin, ix. 212. He loosed the tracer, leaped on its back … and … went off.
1843. Bethune, Sc. Fireside Stor., 134. The sudden jerk … brought the shaft horse, who was a powerful animal, still nearer to that side of the road, while it made both him and the tracer lower their heads.
1899. J. Lumsden, Edin. Poems & Songs, 110. Boot-blackers, news-boys—the smartest we ken! An’ their billies, the tracers—Dickie an’ Ben.
