Answer:
A word ROOT is the part of a word that shows its ORIGINAL meaning
English root words often come from other languages, especially LATIN and GREEK
Knowing the meaning of a word root can help you understand a word’s MEANING/DEFINITION (choose one, they basically mean the same thing)
Other word parts can be added to the beginning or the end of a word root to create a COMPOUND (not sure about this) word with the same central meaning.
I see that you are using the Guided Notes from Edgenuity. If you go to Slide 10 on your Instructions, you should find all of the answers to the blanks.
Hope this helped! :3