Worcestershire sauce
Worcestershire sauce or Worcester sauce / ⓘ WUUST-ər(-shər)) is a fermented liquid condiment invented by the pharmacists John Wheeley Lea and William Henry Perrins in the city of Worcester in Worcestershire, England, during the first half of the 19th century. The inventors went on to form the company Lea & Perrins. Worcestershire sauce has been a generic term since 1876, when the English High Court of Justice ruled that Lea & Perrins did not own a trademark for the name "Worcestershire".
Source: Wikipedia