If you’re reading this on a treadmill or while taking a walk, you may know about the peripatetic, or walking, philosopher Aristotle, who taught while strolling with his students. Or, maybe you just like being a peripatetic, a walking wanderer.

Peri- is the Greek word for “around,” and peripatetic is an adjective that describes someone who likes to walk or travel around. Peripatetic is also a noun for a person who travels from one place to another or moves around a lot. If you walk in a circle, you are peripatetic, or walking, but you aren’t a peripatetic, or wanderer, unless you actually go somewhere.