fluxion：流动，不断的变化，转变，飞跑，消失 

词根词缀： -flux-流 + -ion名词词尾

• invocation
• invoice
• invoke
• involuntary
• involve
• involved
• involvement
• invulnerable
• inward
• inwardly
• punishment
• punitive
• Punjabi
• punk
• punky
• punnet
• punster
• punt
• punter
• puny
• pup
• pupa
• pupate
• pupil
• pupilage