Epsom saltsyoudaoicibaDictYouDict[Epsom salts 词源字典]
magnesium sulphate, 1770, obtained from Epsom water, the water of a mineral spring at Epsom in Surrey, England, the medicinal properties of which were discovered in Elizabethan times. The place name is recorded c.973 as Ebbesham, literally "Ebbi's homestead," from the name of some forgotten Anglo-Saxon. The mineral supply there was exhausted 19c.[Epsom salts etymology, Epsom salts origin, 英语词源]