* Prefix: There is no prefix in the word "tragic flaw."
* Root: The root word is "tragic," which comes from the Greek word "tragos" meaning "goat" (referring to goat songs used in ancient Greek theatre).
* Suffix: The word "flaw" is itself the root and the whole word acts as the suffix in this phrase.
Therefore, the word "tragic flaw" is a compound noun, not a single word with a prefix and suffix. The phrase describes a character defect that leads to a character's downfall in a tragic story.