a. A traditional, typically ancient story dealing with supernatural beings, ancestors, or heroes that serves as a fundamental type in the worldview of a people, as by explaining aspects of the natural world or delineating the psychology, customs, or ideals of society: the myth of Eros and Psyche; a creation myth.
b. Such stories considered as a group: the realm of myth.
2. A popular belief or story that has become associated with a person, institution, or occurrence, especially one considered to illustrate a cultural ideal: a star whose fame turned her into a myth; the pioneer myth of suburbia.
3. A fiction or half-truth, especially one that forms part of an ideology.
4. A fictitious story, person, or thing: "German artillery superiority on the Western Front was a myth" (Leon Wolff).
[New Latin mȳthus, from Late Latin mȳthos, from Greek mūthos.]
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.