- citric (adj.)
- 1800, from Modern Latin citricum (in acidum citricum "citric acid," discovered by Scheele in 1784; see citrus + -ic. The classical adjective was citreus.
- sulfate (n.)
- 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.