juvenescence：返老还童，变年轻   

词根词缀： -juven-年轻 + -escence名词词尾

• lifestyle
• lift
• lift-off
• ligament
• ligate
• ligature
• ligger
• light
• lighten
• lighter
• light-fingered
• light-footed
• light-headed
• light-hearted
• light industry
• lighting
• lightly
• lightning
• lightning bug
• lightning conductor
• lightning rod
• light pollution
• lightproof
• lightship
• light show