Etymology

osteomalacia

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Today it means: A softening of adult bones due to inadequate mineralization; the adult equivalent of rickets. Full definition →

English malacia ← Ancient Greek ὀστέον (ostéon) ← Proto-Indo-European *h₃ésth₁
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The story

  1. Proto-Indo-European*h₃ésth₁
  2. Ancient Greekὀστέον (ostéon)
  3. Englishosteo-
  4. Englishmalacia
  5. English todayosteomalacia

From osteo- + malacia.

Etymology from Wiktionary, CC BY-SA 4.0.