Etymology

depressurise

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English pressurise ← Latin pressūra ← Proto-Italic *pres-
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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. Proto-Indo-European*per-?
  8. Proto-Indo-European*pres-
  9. Proto-Italic*pres-
  10. Latinpremō
  11. Latinpressūra
  12. Englishpressure
  13. Englishpressurise
  14. English todaydepressurise

From de- + pressurise.

Etymology from Wiktionary, CC BY-SA 4.0.