Invented name with no single established meaning
Paelyn is a modern American coinage, likely created by blending the popular prefix 'Pae-' (as seen in Paisley) with the common suffix '-lyn'. While it lacks a historical etymology, it follows the contemporary trend of melodic, multi-syllabic feminine names. It is often associated with the aesthetic of similar names like Raelyn or Braelyn.
Less common today
Paelyn isn't in the latest US Top 1000. It last peaked at #8,057 in 2009.
US births per 5-year period, 1990βpresent (SSA data).