hydrargyrum (n.)youdaoicibaDictYouDict[hydrargyrum 词源字典]
"mercury, quicksilver," 1560s, from Latin hydrargyrus, from Greek hydrargyros, from hydr-, stem of hydor "water" (see water (n.1)) + argyros "silver" (see argent). Hence the chemical abbreviation Hg for the element mercury.[hydrargyrum etymology, hydrargyrum origin, 英语词源]