Etymology

interpenetration

Today it means: The act of penetrating between or within other substances; mutual penetration. Full definition →

English penetration ← Latin inter- ← Proto-Italic *n̥ter
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The story

  1. Proto-Indo-European*h₁én
  2. Proto-Indo-European*h₁n̥tér
  3. Proto-Italic*n̥ter
  4. Latininter
  5. Latininter-
  6. Englishinter-
  7. Englishpenetration
  8. English todayinterpenetration

From inter- + penetration.

Etymology from Wiktionary, CC BY-SA 4.0.