Triskadeccaphobia is the fear of what?

Triskadeccaphobia refers to the irrational fear of the number thirteen. This term is derived from the Greek words where "tris" means three, "deka" means ten, and "phobia" denotes fear. The number thirteen has historically been associated with superstitions and negative beliefs in various cultures, which contributes to this fear. Many people believe that it is an unlucky number, which is why it often appears in contexts like avoidances of the number in buildings, events, and other settings. Understanding this fear in a broader cultural context helps clarify why thirteen holds such significance as a source of anxiety for some individuals.