Phrenesis
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 phrenitis countable, obsolete, uncountable
- 2 madness, frenzy countable, uncountable
Etymology
From Latin phrenesis, from Ancient Greek *φρένησις (*phrénēsis), a later equivalent of φρενῖτις (phrenîtis, “inflammation of the brain”). Doublet of frenzy.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.