What are words containing the Greek root faith?

The Greek root for "faith" is pistis (pronounced "pis-tis"). Here are some words containing that root:

Directly derived from "pistis":

* Pistis (noun): Faith, belief, trust

* Pistic (adjective): Relating to faith, or to the act of believing

* Pistical (adjective): Pertaining to faith, or to the act of believing

Words using "pistis" as a root:

* Epistolary (adjective): Relating to letters, especially personal letters

* Epistemology (noun): The study of knowledge

* Fideism (noun): The belief that faith is the only or primary source of knowledge

* Infidel (noun): A person who does not believe in a particular religion

* Pious (adjective): Having or showing a deep religious feeling or commitment

* Unfaithful (adjective): Not loyal or true

* Faithful (adjective): Loyal, true, and reliable

Note: While some of these words do not directly use "pistis" in their spelling, they are derived from the same root and carry the same meaning.