Bhairava originates with the term bhīru, meaning "fearsome". Bhairava usually means "terribly fearsome variety". It can be often called a single who destroys concern or one that is over and above fear. Just one interpretation is always that he protects his devotees from dreadful enemies, greed, lust, and anger. https://www.youtube.com/watch?v=S2iLMNuDYc0