Most beautiful
Kalyssa is a modern American invention, likely created by blending the prefix 'Ka-' with the name Lyssa or Alyssa. It is often associated with the Greek word 'kallistos', meaning 'most beautiful', which is the root of the name Callista.
Less common today
Kalyssa isn't in the latest US Top 1000. It last peaked at #3,042 in 2001.
US births per 5-year period, 1990–present (SSA data).
