pernicious

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English[edit]

Etymology[edit]

From Middle English, from Old French pernicios, from Latin perniciosus (destructive), from pernicies (destruction), from per (through) + nex (slaughter, death)

Pronunciation[edit]

Adjective[edit]

pernicious (comparative more pernicious, superlative most pernicious)

  1. Causing much harm in a subtle way.
  2. Causing death or injury; deadly.

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