adj. mud·di·er, mud·di·est
1. Full of or covered with mud.
a. Not bright or pure: a muddy color.
b. Not clear; cloudy, as with sediment: muddy coffee.
3. Lacking luster; dull: a muddy complexion.
4. Confused or vague: muddy thinking.
tr.v. mud·died, mud·dy·ing, mud·dies
1. To make dirty or muddy.
2. To make dull or cloudy.
3. To make obscure or confused.
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.