1891 I was a bit off
way old

The name "antivenin" comes from the French word "venin", meaning venom, and historically "antivenin" was predominant around the world. In 1981, the World Health Organization decided that the preferred terminology in the English language would be "venom" and "antivenom" rather than "venin/antivenin" or "venen/antivenene".[2]
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Bud