d30e526 1471 Ripley Comp. Alch. in Ashm. 1652, 190 Waters corrosyve and waters ardent [i.e. acids and spirits].
d30e520 1794 Sullivan View Nat. II. 118 Receptacles of molten ore, and ardent liquids within the cavities of mountains.
d30e518 1514 Barclay Cyt. & Uplandyshm; (1847) Introd. 36 Though thou shouldest perishe for very ardent thirst.