mid-14c., "delirium, insanity," from Old French frenesie "frenzy, madness" (13c.), from Medieval Latin phrenesia, from phrenesis, back-formation from Latin phreneticus "delirious" (see frenetic). Meaning "excited state of mind" is from c. 1400.
frenzy (v.)
1795, from frenzy (n.). Related: Frenzied; frenzying.
French fries
Frenchify
frenetic
frenum
frenzied
frenzy
Freon
frequence
frequency
frequent
frequentative
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