It comes from the Greek word "peri," meaning "around," "about," or "near."
Here are some examples of words using the prefix "peri":
* Perimeter: the outer boundary of a two-dimensional shape.
* Periscope: a device used for viewing objects above the horizon.
* Pericardium: the sac that encloses the heart.
* Peripheral: relating to the outer edge or surface of something.