[grahym] 
noun, verb, grimed, grim⋅ing.| 1. | dirt, soot, or other filthy matter, esp. adhering to or embedded in a surface. |
| 2. | to cover with dirt; make very dirty; soil. |
| grime (grīm) n. Black dirt or soot, especially such dirt clinging to or ingrained in a surface. tr.v. grimed, grim·ing, grimes To cover with black dirt or soot; begrime. [Middle English grim; akin to Middle Dutch grīme; see ghrēi- in Indo-European roots.] |