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 the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.