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English word poison comes from Middle English (1100-1500) puisun
puisun (Middle English)
poison (English)
(transitive) To cause someone to hate or to have unfair negative opinions. (transitive) To cause something to become much worse. (transitive) To pollute; to cause some part of the environment to become poisonous. (transitive) To use poison to kill or paralyse somebody (informal) A drink; liquor.. A substance that is harmful or lethal to a living organism.. Something that harms a person or thing.