Incrassating Syrup.
Take Plantain-water 1 pint; Gum Arabic 1 ounce and half; dissolve at the Fire; and add fine Sugar 1 pound: Make it into a Syrup.
See the incrassating Decoction, whose Virtues it emulates. To which add, that externally us'd, it checks an Herpes.
Thomas Fuller
Pharmacopeia Extemporanea 1710