acetum

There is even evidence that chemical firefighting methods were used by throwing a vinegar based substance called acetum into fires.

The name acetic acid derives from acetum, the Latin word for vinegar, and is related to the word acid itself.

In surgery, surgeons used painkillers such as opium and scopolamine (from henbane) for treatments, and acetum (the acid in vinegar) was used to wash wounds.

As the Greeks lacked a word for posca, sources written in Greek, such as Plutarch and the Gospels, use the word oxos (vinegar) in its place (translated as acetum in the Vulgate Bible).

Here Hannibal rested his army, which was suffering from scurvy, refitted the Libyan/African troops with captured Roman equipment and retrained them, and by using low grade local wine (acetum) as an ointment, brought the cavalry horses back to health.

The name Acetofilamentum derives from:Latin noun acetum, vinegar; Latin neuter gender noun filamentum, a spun thread; New Latin neuter gender noun Acetofilamentum, an acetate-producing, filamentous, threadlike bacterium.