arcanum /är-kāˈnəm/

1. A secret or mystery
2. A secret remedy or elixir

• superfluidity
• superfluities
• superfluity
• superfluous
• superfluously
• superfluousness
• superfluousnesses
• superflux
• superfluxes
• super flyweight
• superfoetation
• superfood
• superfrontal
• superfrontals
• superfuse
• superfused
• superfuses
• superfusing
• superfusion
• superfusions
• super G
• supergene
• supergenes
• supergiant
• subject