profusion：大量，丰富，充沛

词根词缀：pro-前 + -fus-熔,注 + -ion名词词尾

• practicable
• practical
• practice
• practise
• practitioner
• pragmatic
• pragmatics
• prairie
• praise
• praiseworthy
• praline
• pram
• prana
• prance
• prandial
• prang
• prank
• praseodymium
• prat
• prate
• pratfall
• prattle
• pravity
• prawn
• praxis