v. damp·ened, damp·en·ing, damp·ens
1. To make damp.
2. To deaden, restrain, or depress: "trade moves ... aimed at dampening protectionist pressures in Congress" (Christian Science Monitor).
3. To soundproof.
To become damp.
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.