Bovril is the trademarked name of a thick, salty meat extract, developed in the 1870s by John Lawson Johnston and sold in a distinctive, bulbous jar. It is made in Burton upon Trent, Staffordshire, owned and distributed by Unilever UK.
Bovril can be made into a drink by diluting with hot water, or less commonly with milk. It can also be used as a flavouring for soups, stews or porridge, or spread on bread, especially toast, rather like Marmite.
The first part of the product’s name comes from Latin bos meaning “ox” or “cow.” Johnston took the -vril suffix from Bulwer-Lytton’s then-popular “lost race” novelThe Coming Race (1870), whose plot revolves around a superior race of people, the Vril-ya, who derive their powers from an electromagnetic substance named “Vril.”
Info gleaned from Wikipedia