facile princeps /fasˈi-lē prinˈseps or fakˈi-le prinˈkeps/

Obviously pre-eminent

• cerias
• ceric
• ceriferous
• cering
• Cerinthian
• ceriph
• ceriphs
• cerise
• cerises
• cerite
• cerites
• cerium
• cerium metals
• ceriums
• cermet
• cermets
• CERN
• cerne
• cernuous
• cero
• cerograph
• cerographic
• cerographical
• cerographies
• cerographist