* Prefix: A word part added to the beginning of a word to change its meaning. Examples: "un-", "re-", "pre-".
* Suffix: A word part added to the end of a word to change its meaning or grammatical function. Examples: "-ing", "-ly", "-ness".
To find a word with both, look for a word that has an addition at the beginning and an addition at the end.
Here are some examples:
* Unbelievable: "un-" (prefix) + "believable" (root word)
* Disappointment: "dis-" (prefix) + "appointment" (root word)
* Carefully: "care" (root word) + "-fully" (suffix)
* Prematurely: "pre-" (prefix) + "mature" (root word) + "-ly" (suffix)
Let me know if you'd like more examples!