Etymology

delouse

D2E1L1O1U1S1E1

Today it means: To remove lice from. Full definition →

English louse ← Middle English lous ← Old English lūs
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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*lewH-?
  8. Proto-Germanic*lūs
  9. Proto-West Germanic*lūs
  10. Old Englishlūs
  11. Middle Englishlous
  12. Englishlouse
  13. English todaydelouse

From de- + louse.

Etymology from Wiktionary, CC BY-SA 4.0.