Question

What do the words hydrant, hydroplane, hydrology, and hydrotropic have in common?
1)a free morpheme
2)a suffix
3)a base word
4)a root word

Answers

GPT-4o mini
The words hydrant, hydroplane, hydrology, and hydrotropic all share a common element: they each contain the root word "hydro," which comes from the Greek word "hudor," meaning water. Therefore, the answer is:

4) a root word