Hazardous means dangerous or risky, especially in a way that could cause harm to people or the environment.
From “hazard,” which came from Old French “hasard,” possibly referring to a dice game of chance. The idea of risk in a game expanded to general danger.
It’s funny that a word tied to a dice game now appears on serious warning labels. The jump from gambling risk to chemical danger shows how one idea of “taking a chance” can grow very large.
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