What are words that contain the root athlon?

The root "athlon" comes from the Greek word "athlon", meaning "contest" or "struggle". It's not a common root in English, but here are some words that contain it:

* Pentathlon: A competition consisting of five athletic events.

* Decathlon: A competition consisting of ten athletic events.

* Marathon: A long-distance running race. While "marathon" doesn't directly contain "athlon", it is derived from the Battle of Marathon, which is a significant contest.

It's worth noting that the "athlon" root is often combined with prefixes and suffixes to create more complex words.

Let me know if you'd like more examples!