Etymology

derate

D2E1R1A1T1E1

Today it means: To lower the rated capability of any rated equipment or material. Full definition →

English rate ← Latin dē- ← Proto-Italic *dē
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The story

  1. Proto-Indo-European*de
  2. Proto-Indo-European*déh₁
  3. Proto-Italic*dē
  4. Latindē
  5. Latindē-
  6. Englishde-
  7. Englishrate
  8. English todayderate

From de- + rate.

Etymology from Wiktionary, CC BY-SA 4.0.