1. Wet, sticky, soft earth, as on the banks of a river.
2. Slang Wet plaster, mortar, or cement.
3. Slanderous or defamatory charges or comments: slinging mud at his opponent.
tr.v. mud·ded, mud·ding, muds
To cover or spatter with or as if with mud.
[Middle English mudde, probably from Middle Low German and Middle Dutch modde.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. 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.