Etymology

pseudohalogen

P3S1E1U1D2O1H4A1L1O1G2E1N1

Today it means: A binary inorganic compound with a structure similar to that of the interhalogens but containing at least one non-halogen radical such as cyanide Full definition →

English halogen ← Middle English pseudo- ← Ancient Greek ψευδής (pseudḗs)
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The story

  1. Ancient Greekψεύδω (pseúdō)
  2. Ancient Greekψευδής (pseudḗs)
  3. Middle Englishpseudo-
  4. Englishpseudo-
  5. Englishhalogen
  6. English todaypseudohalogen

From pseudo- + halogen.

Etymology from Wiktionary, CC BY-SA 4.0.