magistery
magistery
(ˈmædʒɪstərɪ; -trɪ)n, pl -teries
1. (Alchemy) an agency or substance, such as the philosopher's stone, believed to transmute other substances
2. (Alchemy) any substance capable of healing
[C16: from Medieval Latin magisterium, from Latin: mastery, from magister master]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014