"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).’