Directly from French:
* Mot-juste: The perfect word or phrase.
* Mot d'ordre: A slogan or password.
* Mot de passe: A password.
English words derived from "mot":
* Motto: A short sentence or phrase that expresses a guiding principle or belief.
* Motivation: The reason or reasons for acting or behaving in a particular way.
* Motor: A machine that provides motive power.
* Motive: A reason for doing something, especially one that is hidden or not obvious.
* Motion: The act or process of moving or being moved.
Important note: While "mot" is a root word in French, its usage in English is limited. The English language has its own set of root words that are more commonly used.