a. [f. COOM sb.1 + -Y1.] Begrimed with soot or coal-dust.
1823. Galt, Entail, II. iii. 22. Ye see my fingers are coomy. Ibid. (1830), Lawrie T., I. iv. (1849), 11. A wee coomy thing of a nailer like me.
1853. Whistle-Binkie (Sc. Songs), Ser. I. 88. Ilk coomy collier.