adj. mer·ri·er, mer·ri·est
1. Full of cheerfulness, liveliness, and good feelings: merry revelers.
2. Marked by or offering fun, good feelings, and liveliness; festive: a merry evening.
3. Brisk: a merry pace.
4. Archaic Delightful or pleasing.
[Middle English merri, from Old English mirige, pleasant; see mregh-u- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.