Combination of Desiree (desired) and Lynn (lake)
Dezlyn is a modern American invention, likely created by blending the prefix 'Dez' from names like Desiree or Destiny with the popular 'lyn' suffix. Desiree has French roots meaning 'desired' or 'longed for', while Lynn is of Welsh origin referring to a lake. As a contemporary coinage, it does not have a deep historical etymology but follows the trend of rhythmic, multi-syllabic feminine names.
Less common today
Dezlyn isn't in the latest US Top 1000. It last peaked at #9,298 in 2016.
US births per 5-year period, 1990βpresent (SSA data).