1. The act of changing for the better; improvement: "Society may sometimes show signs of repentance and amendment" (George G. Coulton).
2. A correction or alteration, as in a manuscript.
a. The process of formally altering or adding to a document or record.
b. A statement of such an alteration or addition.
c. Amendment One of the provisions in the US Constitution protecting individual rights.
4. A material, such as organic matter or sand, mixed into soil to improve growing conditions.
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.