Question

sort the words according to the meanings of their shared roots. excavate cavity decryption cavernous encrypt encryption hide hollow

Explanation:

• The root "crypt" means "hide". So words related to "hide" are "decryption", "encrypt", "encryption".
• The root "cav" means "hollow". So words related to "hollow" are "excavate", "cavity", "cavernous".

Answer:

• hide: decryption, encrypt, encryption
• hollow: excavate, cavity, cavernous