Etymology

extrabacterial

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Today it means: That does not involve a bacterium Full definition →

English bacterial ← Proto-Indo-European *h₂élisder.? ← New Latin bactēria
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The story

  1. Proto-Indo-European*h₁éǵʰ
  2. Proto-Indo-European*h₁éǵʰs
  3. Proto-Indo-European*h₁eǵʰsteros
  4. Proto-Italic*eksteros
  5. Latinexter
  6. Latinextrā
  7. Englishextra-
  8. Ancient Greekβακτηρία (baktēría)
  9. Ancient Greekβακτήριον (baktḗrion)
  10. New Latinbactēria
  11. Englishbacteria
  12. Proto-Indo-European*h₂el-
  13. Proto-Indo-European*h₂élisder.?
  14. Englishbacterial
  15. English todayextrabacterial

From extra- + bacterial.

Etymology from Wiktionary, CC BY-SA 4.0.