Here's a breakdown:
* Prefix: A group of letters added to the beginning of a word to change its meaning. Example: "un-" in "unhappy".
* Suffix: A group of letters added to the end of a word to change its meaning or grammatical function. Example: "-ing" in "walking".
* Root: The basic part of a word that carries its core meaning. Example: "graph" in "telegraph".
Let me know if you'd like more examples or explanations!