Etymology

penam

P3E1N1A1M3

Today it means: A bicyclic ring system containing a beta-lactam moiety fused with a five-member thiazolidine ring; the common core skeleton of the penicillin subclass of beta-lactam antibiotics. Full definition →

English lactam ← Proto-Indo-European *dʰeh₁- ← Latin ammoniacus
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Proto-Indo-European*pes-
  2. Proto-Indo-European*pes-ni-s
  3. Proto-Italic*peznis
  4. Latinpēnis
  5. Latinpēniculus
  6. Latinpēnicillum
  7. Englishpenicillin
  8. Latinlac
  9. Englishlacto-
  10. GermanKeton
  11. Englishketone
  12. Englishlac(tone)
  13. Egyptianjmn
  14. Ancient GreekᾸ̓́μμων (Ắmmōn)
  15. LatinAmmōn
  16. Latinammoniacus
  17. Englishammonia
  18. Proto-Indo-European*dʰeh₁-
  19. Englisham(ide)
  20. Englishlactam
  21. English todaypenam

Blend of penicillin + lactam.

Etymology from Wiktionary, CC BY-SA 4.0.