Definition of pernicious

The word "pernicious" originated from the Latin word "perniciosus," which was used to describe dangerous or destructive things. The word came into the English language during the 16th century, when it was adopted from the French word "pernicieux." At the time, the English word "pernicious" was used to describe things that were poisonous or fatal. However, over time, its meaning expanded to include things that were detrimental or destructive in a more general sense. In the 18th century, the word "pernicious" began to be used to describe actions that were damaging to society, politics, or people's well-being. It was often used as a political term to describe certain strategies or policies that were seen as harmful or destructive. Over time, the meaning of "pernicious" has shifted slightly to include more nuanced concepts, such as being toxic or causing harm in subtle or invisible ways. Today, the word is commonly used to describe things that are detrimental to people's health, success, or happiness. In summary, the word "pernicious" originated from the Latin word "perniciosus" and was adopted into English during the 16th century. Its meaning has evolved over time to include a range of negatively connoted concepts, from toxicity and poison to destructive actions and policies.