cryptical：神秘的；有隐义的；令人难以理解的；<动>隐藏的；有保护色的 

词根词缀： -crypt-隐藏,秘密 + -ical形容词词尾

• really
• realm
• realpolitik
• ream
• reanimate
• reanimation
• reap
• reapply
• reappraise
• rear
• rearguard
• rearing
• rearm
• rearmost
• rearward
• reason
• reasonable
• reasoning
• far
• Farad
• farce
• farcical
• fare
• farewell
• farm