Oxymel

Oxymel (, ) is a mixture of honey and vinegar, used as a medicine.
Its name is often found in Renaissance (and later) pharmacopoeiae in Late Latin form as either a countable or uncountable noun. As a countable noun, it is spelled variously as (singular) oxymellus and oxymellis, and
plural oxymeli and oxymelli.
Etymology and recipe.
Cato the Elder describes it thus:
Use.
In the 1593 work "Enchiridion chirurgicum", oxymel was recommended as part of a treatment for ophthalmia.
Because Latin was (and is) still used widely in medical prescriptions, it was still known by this name in Victorian times: