fla·gran·te de·lic·to (flə-grăn′tē dĭ-lĭktō)
1. In the very act of committing an offense; red-handed.
2. In the act of having sex.
[Medieval Latin flagrante dēlictō, while the crime is blazing : flagrante, ablative of flagrāns, blazing + dēlictō, ablative of dēlictum, offense.]
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.