n. pl. fren·zies
1. A state of violent mental agitation or wild excitement.
2. Temporary madness or delirium.
3. A mania; a craze.
tr.v. fren·zied, fren·zy·ing, fren·zies
To drive into a frenzy.
[Middle English frenesie, from Old French, from Medieval Latin phrenēsia, from Latin phrenēsis, back-formation from phrenēticus, delirious; see FRENETIC.]
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:
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