Etymology

robustness

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Today it means: The quality of being robust. Full definition →

English robust ← Latin rōbustu ← Proto-Italic *rouðosder.?
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The story

  1. Proto-Indo-European*h₁rewdʰ-
  2. Proto-Indo-European*h₁rowdʰós
  3. Proto-Italic*rouðosder.?
  4. Latinrōbus
  5. Latinrōbustu
  6. Englishrobust
  7. English todayrobustness

From robust + -ness.

Etymology from Wiktionary, CC BY-SA 4.0.