Etymology

bioweapon

B3I1O1W4E1A1P3O1N1

Today it means: Any weapon designed to be used in biological warfare. Full definition →

English weapon ← Middle English wepen ← Old English wēpn
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The story

  1. Proto-Indo-European*gʷeyh₃-
  2. Ancient Greekβῐ́ος (bĭ́os)
  3. Ancient Greekβῐο- (bĭo-)
  4. Englishbio-
  5. Proto-Germanic*wēpną
  6. Proto-West Germanic*wāpn
  7. Old Englishwēpn
  8. Middle Englishwepen
  9. Englishweapon
  10. English todaybioweapon

From bio- + weapon.

Etymology from Wiktionary, CC BY-SA 4.0.