Etymology
Advertisement

paranoia (n.)

"mental disorder characterized by systematized delusions of more or less definite scope," 1848 (earlier paranoea 1811), from Greek paranoia "mental derangement, madness," from paranoos "mentally ill, insane," from para- "beside, beyond" (see para- (1)) + noos "mind," which is of uncertain origin.

FOR several years frequent descriptions have been given in the foreign journals, especially German and Italian, of the forms of insanity designated by the names Paranoia, Verrücktkeit, and Wahnsinn. ["Paranoia — Systematized Delusions and Mental Degenerations," J. Séglas (transl. William Noyes), 1888]

updated on August 15, 2020

Advertisement
Advertisement
Definitions of paranoia from WordNet

paranoia (n.)
a psychological disorder characterized by delusions of persecution or grandeur;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.