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

Obviously pre-eminent

• grittiness
• grittinesses
• gritting
• gritty
• grivet
• grivets
• grize
• grizzle
• grizzled
• grizzler
• grizzlers
• dystrophia
• dystrophias
• dystrophic
• dystrophies
• dystrophin
• dystrophins
• dystrophy
• dysuria
• dysurias
• dysuric
• dysury
• Dyticus
• dytiscid
• Dytiscus