citric (adj.)youdaoicibaDictYouDict[citric 词源字典]
1800, from Modern Latin citricum (in acidum citricum "citric acid," discovered by Scheele in 1784; see citrus + -ic. The classical adjective was citreus.[citric etymology, citric origin, 英语词源]
sulfate (n.)youdaoicibaDictYouDict
salt of sulfuric acid, 1790 (sulphat), from French sulphate (1787), from Modern Latin sulphatum acidum, from Latin sulpur, sulphur (see sulfur) + chemical ending -ate (3). The spelling with -ph- is standard in Britain.