* Word roots are the basic building blocks of words, often derived from Greek or Latin. They typically carry the core meaning of a word. Examples include "graph" (writing), "phone" (sound), and "derm" (skin).
* Suffixes are added to the end of words to modify their meaning or grammatical function. Examples include "-ing" (present participle), "-ly" (adverb), and "-er" (noun denoting a person or thing that performs an action).
While "Aphasia" originates from Greek, it's a complete word on its own, not a component part of another word.