Noble and kind
Adilen is a modern elaboration likely derived from the Germanic root 'adal', meaning noble. It is often seen as a blend of the classic Ada or Adeline with the popular 'len' suffix, suggesting a combination of nobility and gentleness.
Less common today
Adilen isn't in the latest US Top 1000. It last peaked at #10,961 in 2010.
US births per 5-year period, 1990βpresent (SSA data).