The Collaborative International Dictionary
Oxymel \Ox"y*mel\, n. [L. oxymeli, Gr. ???; 'oxy`s acid + ???
honey.] (Med.)
A mixture of honey, water, vinegar, and spice, boiled to a
sirup.
--Sir T. Elyot.
Wiktionary
n. (context historical medicine English) A mixture of honey, water, and vinegar, boiled to a syrup, sometimes mixed with herbs or spices.
Wikipedia
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.
Usage examples of "oxymel".
His health remained strong throughout this period, interrupting his three-month burst of creativity only once, in early November, when Suor Maria Celeste and Suor Luisa treated his brief indisposition by sending him five ounces of their vinegary oxymel concoction and some syrup of citron rind to ameliorate its bitter taste.