1: mysterious or specialized knowledge, language, or information accessible or possessed only by the initiate —usually used in plural

2: elixer

https://arcanumglobal.com/about-arcanum/

https://storage.courtlistener.com/recap/gov.uscourts.nysd.512427/gov.uscourts.nysd.512427.356.2.pdf

footnote 8

https://rakishevkenes.org/news/9u7xopy9vpros52k43ygq77pr3214n

https://www.dailymail.co.uk/news/article-8849097/As-GUY-ADAMS-uncovers-links-suspect-regime-just-damage-Hunter-Biden-cause.html