nostrum [n.] : a medicine, especially one considered not effective, prepared by an unqualified person.

shrub [n.] : a  syrup for cocktails and sodas; made with local fruits and herbs, organic apple cider vinegar, and organic cane sugar.

The word "shrub" is derived from an Arabic word for "drink." shrubs have been enjoyed in the Middle East for thousands of years, and in the New World since the colonial era. They fell out of style with the advent of refrigeration, but are starting to make a comeback within the modern craft beverage movement.