"But Khemsa shook like a man in an ague."

-The people of the Black Circle

a·gue.

[ˈāˌɡyo͞o]

NOUN

1.

archaic

malaria or some other illness involving fever and shivering.

•a fever or shivering fit.

ORIGIN

Middle English: via Old French from medieval Latin acuta (febris) ‘acute (fever).’