hallucination (English)
Where does "hallucination" come from?
The English noun 'hallucination' derives from the verb 'hallucinate', which comes from the Latin 'hallucinatus'[1]. The first known usage of the word in the English language is attributed to Sir Thomas Browne[1]. Over time, the term expanded from its early roots to encompass sensory perceptions of non-existent things, mental wanderings, and more recently, confident errors produced by artificial intelligence.
Full etymology tree
- hallucination (English), 'A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens.'
- derived hallucinate (English), 'To seem to perceive things (with one or more of one's senses) which are not really present; to have visions; to experience a hallucination.'
- borrowed hallucinatus (Latin)
- derived hallucinate (English), 'To seem to perceive things (with one or more of one's senses) which are not really present; to have visions; to experience a hallucination.'
Cognates and doublets
- hallucination (French)
Descendants and derived words
- auditory hallucination (English)
- hallucinational (English)
- hallucinationy (English)
- hallucinogen (English)
- negative hallucination (English)
- nonhallucination (English)
- parahallucination (English)
- pseudohallucination (English)
- release hallucination (English)
Sources
Updated October 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris