Noble kind
Addylyn is a modern American coinage, likely created by blending the traditional name Adeline with the popular 'lyn' suffix. It shares the etymological roots of Adelaide, meaning 'noble' and 'kind' or 'type'.
Less common today
Addylyn isn't in the latest US Top 1000. It last peaked at #10,961 in 2013.
US births per 5-year period, 1990βpresent (SSA data).