Etymology

carbapenem

C3A1R1B3A1P3E1N1E1M3

Today it means: Any of a class of broad-spectrum beta-lactam antibiotics that are resistant to enzymatic hydrolysis Full definition →

English penem ← French carbone ← Latin carbōnem
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The story

  1. Proto-Indo-European*kerh₃-der.?
  2. Latincarbōnem
  3. Frenchcarbone
  4. Englishcarba(on)
  5. Englishpenem
  6. English todaycarbapenem

From carba(on) + penem.

Etymology from Wiktionary, CC BY-SA 4.0.