Common Words:
* Civilize: To make (a person or place) more refined or cultured.
* Civilian: A person who is not a member of the armed forces or the police.
* Civilization: The process of becoming civilized.
* Civil: Relating to citizens or their affairs.
* Civilly: In a polite or courteous way.
Less Common Words:
* Civilianized: Made into a civilian.
* Civilianism: The state of being a civilian.
* Civilite: Politeness or courteousness.
* Civilness: The state of being civil.
* Civilizationism: A belief in the progress of civilization.
Let me know if you'd like to see any specific types of words with "civi" in them, such as verbs, nouns, or adjectives!