Etymology

antidictionary

an·ti·dic·tion·a·ry
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Today it means: The set of all words of minimal length that never appear in a particular string. Full definition →

English dictionary ← Middle English dixionare ← Medieval Latin dictiōnārium
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The story

  1. Proto-Indo-European*h₂ent-
  2. Proto-Indo-European*h₂énts
  3. Proto-Indo-European*h₂énti
  4. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
  5. Ancient Greekἀντι- (anti-)
  6. Englishanti-
  7. Proto-Indo-European*deyḱ-
  8. Proto-Indo-European*déyḱeti
  9. Proto-Italic*deikō
  10. Latindīcō
  11. Latindictiō
  12. Latindictiōnārius?
  13. Medieval Latindictiōnārium
  14. Middle Englishdixionare
  15. Englishdictionary
  16. English todayantidictionary

From anti- (“opposite of, reverse”, prefix) + dictionary.

Etymology from Wiktionary, CC BY-SA 4.0.