Etymology

accessorial

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Today it means: Of or pertaining to an accessory, e.g. to a crime. Full definition →

Proto-Indo-European *h₂élisder.? ← English accessory ← Middle English accessorie
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The story

  1. Proto-Indo-European*h₂éd
  2. Proto-Italic*ad
  3. Proto-Italic*ad-
  4. Latinad-
  5. Proto-Italic*kezdō
  6. Latincēdō
  7. Latinaccēdō
  8. Latinaccessor
  9. Latinaccessōrius
  10. Middle Englishaccessorie
  11. Englishaccessory
  12. Proto-Indo-European*h₂el-
  13. Proto-Indo-European*h₂élisder.?
  14. English todayaccessorial

From accessory + -al.

Etymology from Wiktionary, CC BY-SA 4.0.