com·mem·o·ra·tive (kə-mĕmər-ə-tĭv, -ə-rā′-)
1. Honoring or preserving the memory of another.
2. Produced in limited quantities over a specific period of time to honor a special event or anniversary. Used of coins and postage stamps.
1. Something that honors or preserves the memory of another.
2. A commemorative coin or postage stamp.
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.