Etymology

endocranium

E1N1D2O1C3R1A1N1I1U1M3

Today it means: The layer between the dura mater and the skull Full definition →

English cranium ← Ancient Greek ἔνδον (éndon) ← Proto-Hellenic *éndon
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The story

  1. Proto-Indo-European*h₁n̥dóm
  2. Proto-Hellenic*éndon
  3. Ancient Greekἔνδον (éndon)
  4. Englishendo-
  5. Englishcranium
  6. English todayendocranium

From endo- + cranium.

Etymology from Wiktionary, CC BY-SA 4.0.