Worcestershire. The three syllabled fermented fish sauce guaranteed responsible for 85% of the world's pronunciation-related injuries each year.
Nobody has the exact recipe(s) used by Lee & Perrins, but I'll present a reasonable approximation here for interested parties. It has the same set of ingredients and uses a similar fermentation process.
Ingredients:
Simmer ingredients for 20 minutes covered. Refrigerate covered for 3 weeks. Strain solids, bottle and refrigerate.
It's usable straight away, but will benefit from sitting and maturing for an extended time.