However, you can use prefixes to create words with related meanings, such as:
* Unveil: To remove a veil, reveal something hidden.
* Reveil: (archaic) To reveal, uncover.
If you're looking for a prefix to emphasize the act of covering or concealing, you could use:
* Overveil: (not a real word, but could be used to mean "to veil excessively")
* Superveil: (not a real word, but could be used to mean "to veil completely")
Ultimately, the most fitting prefix will depend on the specific meaning you want to convey.