Etymology

self-delusion

Today it means: The act of deluding oneself, or the state of being so deluded. Full definition →

English delusion ← Latin dēlūsiō ← Middle English self-
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The story

  1. Proto-Indo-European*swé?
  2. Proto-Indo-European*selbʰ-
  3. Proto-Germanic*selbaz
  4. Old Englishself
  5. Old Englishself-
  6. Middle Englishself-
  7. Englishself-
  8. Latindēlūsiō
  9. Englishdelusion
  10. English todayself-delusion

From self- + delusion.

Etymology from Wiktionary, CC BY-SA 4.0.