What does the root word vail mean?

The root word "vail" doesn't have a direct meaning on its own. It's usually part of a larger word and contributes to the overall meaning.

Here are some common words with "vail" as a root:

* Avail: To be of use or benefit.

* Prevail: To be victorious or successful; to be widespread.

* Avalanche: A large mass of snow, ice, or rock that slides down a mountainside.

* Devastate: To destroy or ruin completely.

* Invalid: Not valid or legally binding; not in good health.

As you can see, "vail" is often related to the concepts of value, power, strength, and influence.

To understand the specific meaning of a word with "vail" as a root, you need to look at the full word and its context.