# phrenitis

> English word · Noun · IPA /fɹəˈnʌɪtɪs/

## Definitions
1. Madness, especially as caused by inflammation of the brain; encephalitis, encephalomeningitis, or meningitis.

## Etymology
From Latin phrenītis, from Ancient Greek φρενῖτις (phrenîtis), from φρήν (phrḗn, “mind”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/phrenitis