The word suffix and prefix share a common root fix. This means to?

The common root "fix" in "suffix" and "prefix" comes from the Latin word "fixus," meaning "fixed" or "attached."

Here's why:

* Suffix: A suffix is a word part *attached* to the end of a word to change its meaning or grammatical function.

* Prefix: A prefix is a word part *attached* to the beginning of a word to change its meaning or grammatical function.

So, both "suffix" and "prefix" literally mean "something fixed to" a word.