Ague

(ā/gū), n. [From the O. Fr. ague, f. of agu, N. Fr. aigu, aigue, pointed, sharp; e. g., maladie, fièvre aigue, Lat. acutus, p. p. of acuere, to make sharp or pointed; L. Lat. acuta, acuta febris, violent fever.]

1. Chilliness; a chill, or state of shaking with cold, though in ordinary health. Dryden.
2. (Med.) An intermittent fever, attended by alternate cold and hot fits.