Etymology

hypochlorous

H4Y4P3O1C3H4L1O1R1O1U1S1

Today it means: Pertaining to or derived from chlorine having a valence lower than in chlorous compounds. Full definition →

English chlorous ← Ancient Greek ὑπο- (hupo-) ← Proto-Indo-European *upó
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The story

  1. Proto-Indo-European*upó
  2. Ancient Greekῠ̔πό (hŭpó)
  3. Ancient Greekὑπο- (hupo-)
  4. Englishhypo-
  5. Englishchlorous
  6. English todayhypochlorous

From hypo- + chlorous.

Etymology from Wiktionary, CC BY-SA 4.0.