An enigma or a secret
Derived directly from the English word, which traces back to the Greek 'mysterion'. It refers to something that is hidden, unexplained, or known only to the initiated. As a name, it suggests a sense of depth, intrigue, and curiosity.
Less common today
Mystery isn't in the latest US Top 1000. It last peaked at #6,912 in 1995.
A character in the animated series 'Adventure Time' Β· Adventure Time
Stage name of pickup artist and television personality Erik von Markovik
US births per 5-year period, 1990βpresent (SSA data).