Noble
Addalee is a modern American coinage, likely created by blending the Germanic root 'adal' (meaning noble) with the popular suffix 'lee' (meaning meadow). It functions as a more elaborate variation of names like Ada or Adeline. While it shares sounds with traditional names, its specific construction is contemporary.
Less common today
Addalee isn't in the latest US Top 1000. It last peaked at #5,706 in 2012.
US births per 5-year period, 1990βpresent (SSA data).