tr.v. dis·cred·it·ed, dis·cred·it·ing, dis·cred·its
1. To damage in reputation; disgrace: a report on corruption that discredited the mayor.
2. To cause to be doubted or distrusted: new scientific evidence that discredits earlier theories.
3. To refuse to believe: discredit a story as mere gossip.
1. Loss of respect or damage to one's reputation: an incident that brought discredit on the school.
2. Lack or loss of trust or belief; doubt: evidence that brings the popular notion into discredit.
3. Something that brings disgrace or distrust: He is a discredit to his family.
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.