alchimy
/alˈkɪmi/ or /alˈtɪmi/ (Note: The preferred spelling is ‘alchemy’)
Definitions
1. noun
The medieval science or pseudoscience of attempting to change base metals into gold, find the philosopher’s stone, or create an elixir of life.
“The alchemist spent years trying to perfect his recipe for the philosopher’s stone, but it remained nothing more than a myth.”