mithridate (n.)youdaoicibaDictYouDict[mithridate 词源字典]
"antidote against poison," from Medieval Latin mithridatum, from Late Latin mithridatium, neuter of Mithridatius "pertaining to Mithridates," king of Pontus, who made himself poison-proof.[mithridate etymology, mithridate origin, 英语词源]