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Webster's Dictionary 1828 - Online Edition

Webster's Dictionary 1828

Americal Dictionary of the English Language

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Pernicious

PERNI'CIOUS, adjective [Latin perniciosus, from pernicies; perneco, to kill; per and nex, necis, death.]

1. Destructive; having the quality of killing, destroying or injuring; very injurious or mischievous. Food, drink or air may be pernicious to life or health.

2. Destructive; tending to injure or destroy. Evil examples are pernicious to morals. Intemperance is a pernicious vice.

3. [Latin pernix.] Quick. [Not used.]