Etymology

mesothelium

M3E1S1O1T1H4E1L1I1U1M3

Today it means: A membrane of flat epithelial cells that lines the body cavity of embryos and forms the squamous cells of the peritoneum, pericardium, and pleura Full definition →

English meso- ← Ancient Greek μέσος (mésos) ← Proto-Hellenic *métsos
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The story

  1. Proto-Indo-European*me
  2. Proto-Indo-European*dʰeh₁-?
  3. Proto-Indo-European*médʰi
  4. Proto-Indo-European*médʰyos
  5. Proto-Hellenic*métsos
  6. Ancient Greekμέσος (mésos)
  7. Englishmeso-
  8. English todaymesothelium

From meso- + -thelium.

Etymology from Wiktionary, CC BY-SA 4.0.