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

Obviously pre-eminent

• regrede
• regreded
• regredes
• regredience
• regrediences
• regreding
• regreet
• regreeted
• regreeting
• regreets
• regress
• regressed
• regresses
• regressing
• regression
• regressions
• regression therapy
• regressive
• regressively
• regressiveness
• regressivenesses
• regressivities
• regressivity
• regret
• regretful