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Origin and history of paranoia

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]

The morbid condition seems to have been noticed before. Middle English medical writing has suspecioushed "suspicioushood") for "pathological or delusional state of suspiciousness" (early 15c.).

Entries linking to paranoia

1892 as an adjective, "pertaining to or exhibiting paranoia; also as a noun, "a patient exhibiting paranoia," from paranoia on model of maniac, etc.

"resembling or characterized by paranoia," 1901, irregularly formed from paranoia + -oid. As a noun, "a paranoid person," attested by 1922.

before vowels, par-, word-forming element of Greek origin, "alongside, beyond; altered; contrary; irregular, abnormal," from Greek para- from para (prep.) "beside, near; issuing from; against, contrary to" (from PIE *prea, from root *per- (1) "forward," hence "toward, near; against").

It is cognate with Old English for- "off, away." Originally in English in Greek-derived words; it has been active in English mostly in scientific and technical words, but until recently was not usually regarded as a naturalized formative element in English.

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