1. a fever, typically one that comes and goes in cycles, often accompanied by chills and sweating
Usage: archaic or literary; historically associated with malaria and other infectious diseases
2. a fit of shivering or trembling, especially from cold or fear
Usage: archaic

Examples

• The patient suffered from a recurring ague that lasted for weeks.
• She woke in the night seized by an ague and wrapped herself in blankets.
• The explorer returned from the tropics with a severe ague.
• An ague of fear ran through the crowd when the alarm sounded.
• In medieval times, ague was a common and often fatal illness.