gradine：(台阶)梯级；梯级式一排座位；(神坛后的)壁架  

词根词缀： -grad-级 + -ine名词词尾

• friar
• friary
• fricassee
• friction
• Friday
• fridge
• friend
• friendship
• Friesian
• frieze
• frigate
• regina
• Regina
• region
• regional
• regionalism
• register
• registrar
• registration
• registry
• regnant
• regress
• regression
• regressive
• regret