Pravail is a combination of prevail and avail. It's a strong brand name that could be used for many things.
Like the name, the mark is simple yet evocative, adaptable to many industries.
The name Pravail appears to have no current or past trademark activity on the uspto.gov database. Get moving on this while you can!
Comes with the premium domain pravail.com
A few applications that come to mind:
pharmaceutical
public relations or press release service (pr + avail)
sports equipment
transportation
marketing company
success coach
community services