A component of acids, this gas discovered in 1774 gets its name from the Greek words for "acid" & "forming"
This is an important part of the atmosphere and diatomic oxygen 
gas constitutes ... Its name derives from the Greek roots  oxys, "acid", literally 
"sharp", .... 1774 that described his discovery of the previously unknown 
substance, but... [DOC] [TLE] History of chemistry - Wikipedia [PAR] The history of alchemy represents a time span from ancient history to the present.