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

Obviously pre-eminent

• valiance
• valiances
• valiancies
• valiancy
• valiant
• valiantly
• valiants
• valid
• validate
• validated
• validates
• validating
• validation
• validations
• valider
• validest
• validities
• validity
• validly
• validness
• validnesses
• valine
• valines
• valis
• valise