Words related to "free":
* Liberate: To set free; to release from confinement.
* Liberty: Freedom from control or oppression.
* Liberal: Generous; open-minded; favoring freedom of thought and action.
* Liberalism: A political philosophy that emphasizes individual rights and liberties.
* Libertarian: An advocate of individual liberty, especially with respect to economic and social matters.
* Liberation: The act of setting free; the state of being free.
* Liberator: A person who frees others from captivity or oppression.
Words related to "book":
* Library: A place where books are kept for people to read or borrow.
* Librarian: A person who works in a library, helping people find and use books.
* Libretto: The text of an opera or other musical work.
* Libration: A slight rocking motion of a celestial body, such as the Moon, that makes different parts of its surface visible from Earth.
Other words:
* Liberal arts: Subjects such as literature, history, and philosophy, that are considered essential for a well-rounded education.
* Deliver: To bring something to a person or place. (This word comes from the Latin "de" + "liberare", meaning "to free from").
This is not an exhaustive list, and there are many other words with the Latin root "liber" that you may encounter.