Vaulted cells.

When Jeremiah was entered into the dungeon, and into the CABINS, and Jeremiah had remained there many days; then Zedekiah the king sent, and took him out: and the king asked him secretly in his house, and said, Is there any word from the LORD? ( Jeremiah 37:16-17 )

Dictionary of Words from the King James Bible. Public Domain. Copy freely.