Etymology

ferrocyanide

F4E1R1R1O1C3Y4A1N1I1D2E1

Today it means: The complex ion Fe(CN)₆⁴⁻; any salt containing this ion; they are used in making blue pigments Full definition →

English cyanide ← Latin ferrum ← Old Latin *fersom
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The story

  1. Old Latin*fersom
  2. Latinferrum
  3. Englishferro-
  4. Englishcyanide
  5. English todayferrocyanide

From ferro- + cyanide.

Etymology from Wiktionary, CC BY-SA 4.0.