Unknown; possibly a modern variation of Elise or Kelis
Kelyse is a modern American name with no singular established etymology. It likely functions as a creative blend, potentially combining the 'Ke-' prefix with the name Elise, or serving as a phonetic variant of the name Kelis. Because of its recent emergence, it lacks a traditional historical background.
Less common today
Kelyse isn't in the latest US Top 1000. It last peaked at #9,801 in 2006.
US births per 5-year period, 1990βpresent (SSA data).