orvietan
/ˌɔːvɪˈeɪtn/ /ˌɔːvɪˈiːtn/(also orviétan) Now historical
noun
A medicinal preparation held to be a universal antidote against poisons; an alexipharmic electuary. Hence, more generally and figurative : an antidote.
Origin
Mid 17th century; earliest use found in Weekly Intelligencer. From French orviétan or its probable etymon Italian orvietano from Orvieto, the name of a city in central Italy + -ano, the inventor, Girolamo Ferrante, being a native of this city.