delusion
UK[dɪˈluːʒn]US[dɪˈluːʒn]
n
A false belief or opinion about yourself or your situation, especially one that you continue to believe when it is not true.
n
The action of deluding or the state of being deluded.
Morpheme Breakdown
de
lus
ion
de
down, away
lus
play, trick
ion
noun suffix
Etymology
The word 'delusion' originates from the Latin verb deludere, meaning "to play false, to deceive." This verb itself is composed of de- (meaning "down" or "away," implying a negative or derogatory action) and ludere (meaning "to play"). The core concept is that of a deceptive game played upon the mind. The noun form delusio entered Late Latin, referring to the act of deceiving. Through Old French, it evolved into Middle English, solidifying the modern meaning of a persistent false belief held despite clear evidence to the contrary. The etymological logic traces a path from the literal act of playful trickery to the profound psychological state of being mentally tricked and held captive by a false idea.
Analysis
Structure: de (down, away) + lus (play, trick) + ion (noun suffix)
- de: A Latin prefix meaning "down, away, off, completely." In this context, it implies a negative or reversing force.
- lus: From the Latin root ludere/lus- meaning "to play, to trick, to mock." It is a direct substring of the spelling.
- ion: A Latin-derived suffix used to form nouns indicating an action, process, or result.
Examples
He was under the delusion that he could never be defeated.
Her claims of grandeur are a symptom of her delusion.
It is a common delusion to believe that wealth always brings happiness.