v. mused, mus·ing, mus·es
To be absorbed in one's thoughts; engage in thought.
To consider or say thoughtfully: mused that it might take longer to drive than walk.
A state of reflection.
[Middle English musen, from Old French muser (possibly from mus, snout, from Medieval Latin mūsum) and or of Germanic origin.]
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.