Aqua Fortis (literally 'strong water') was the term used by the alchemists to denote nitric acid, and is still the commercial name of that acid.
Aqua Fortis
Chambers's Encyclopaedia, Volume 1: A to Beaufort, p. 355
Source scan(s): p. 0374
Aqua Fortis (literally 'strong water') was the term used by the alchemists to denote nitric acid, and is still the commercial name of that acid.