Taksa Food Incorporation

There was no need to invent vinegar as it invents itself. Any liquid that has sugar in it automatically turns to vinegar when exposed to air.
The Babalonians used it to preserve foods and as a seasoning for their food. We have record of the Greek using it to preserve foods and Roman soldiers made a beverage used as they traveled.

Not much has changed with our use of vinegar, we still use it to preserve foods and season with.
The name comes from the simple compounding of 2 words by the French and probably not uttered pleasantly. When a cask of wine got a crack in it and became exposed to air they most likely uttered ......vin ..aiger ....which means ..sour wine.