Etymology

ciprofloxacin

C3I1P3R1O1F4L1O1X8A1C3I1N1

Today it means: A broad-spectrum fluoroquinolone antibiotic C₁₇H₁₈FN₃O₃ that is often administered in the form of its hydrochloride C₁₇H₁₈FN₃O₃·HCl and is effective especially against gram-negative bacteria. Full definition →

English cy(clo)pro(pyl) ← Ancient Greek ῡ̔́λη (hū́lē) ← Proto-Indo-European *swel-der.?
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The story

  1. Proto-Indo-European*kʷelh₁-redup.
  2. Proto-Indo-European*kʷékʷlos
  3. Proto-Hellenic*kʷókʷlos
  4. Proto-Hellenic*kúklos
  5. Ancient Greekκύκλος (kúklos)
  6. Late Latincyclus
  7. Middle Englishcicle
  8. Englishcycle
  9. Ancient Greekκύκλος (kúklos)
  10. Ancient Greekκυκλῐκός (kuklĭkós)
  11. Classical Latincyclicu
  12. Middle Frenchcyclique
  13. Frenchcyclique
  14. Classical Latincyclicus
  15. Englishcyclic
  16. Englishcyclo-
  17. Englishpropane
  18. Englishcyclopropane
  19. Proto-Indo-European*swel-der.?
  20. Ancient Greekῡ̔́λη (hū́lē)
  21. Englishcy(clo)pro(pyl)
  22. English todayciprofloxacin

From cy(clo)pro(pyl) + -floxacin (“nalidixic acid derivative”).

Etymology from Wiktionary, CC BY-SA 4.0.