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

• narrowcast
• narrowly
• narrow-minded
• narrows
• narwhal
• nary
• nasal
• nasalize
• nascent
• nasturtium
• nasty
• natal
• natality
• natatorium
• natch
• nation
• national
• national anthem
• national costume
• national curriculum
• national grid
• nationalism
• nationalist
• nationality
• nationalize