Etymology

chloroquine

chlo·ro·quine
C3H4L1O1R1O1Q10U1I1N1E1

Today it means: A 4-aminoquinoline drug used to treat and prevent malaria, having the chemical formula C₁₈H₂₆ClN₃. Full definition →

English chloro- ← Ancient Greek χλωρός (khlōrós) ← Proto-Hellenic *kʰlōrós
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The story

  1. Proto-Indo-European*ǵʰelh₃-
  2. Proto-Indo-European*ǵʰl̥h₃rós
  3. Proto-Hellenic*kʰlōrós
  4. Ancient Greekχλωρός (khlōrós)
  5. Englishchloro-
  6. English todaychloroquine

From chloro- + -quine (“quinoline derivative”).

Etymology from Wiktionary, CC BY-SA 4.0.