arsenic
Word family nounarsenatearsenidearsenitearsenopyritesarsenicarsineadjectivearsenicalarsenious
ar·se·nic /ˈɑːsənɪk $ ˈɑːr-/ noun [uncountableU] Origin arsenic (1300-1400) Latin arsenicum, from Greek arsenikon yellow mineral from which arsenic is obtained, from Syriac zarnig