Nouns:
* Cover: A protective layer or covering.
* Coverlet: A bedspread.
* Covering: A material used to cover something.
* Coverage: The extent or scope of something, such as insurance or news reporting.
* Cover-up: An attempt to conceal a wrongdoing.
Verbs:
* Cover: To place something over or on top of something else.
* Uncover: To reveal or expose something that was hidden.
* Discover: To find or learn something previously unknown.
* Re-cover: To replace the covering of something.
* Overcover: To provide excessive or unnecessary coverage.
Adjectives:
* Covered: Protected or concealed by a cover.
* Uncovered: Not protected or concealed by a cover.
Other:
* Cover story: A false explanation given to conceal the truth.
* Undercover: Operating secretly, often to gather information.
* Counter-cover: A deceptive measure used to mislead an opponent.
* Self-cover: A protective measure taken by an individual.
This is not an exhaustive list, but it gives you a good starting point for understanding how the root word "cover" can be used in various contexts.