Noble
Addalie is a modern American variant likely derived from the Germanic name Adela or the French Adeline. It shares the root word 'adal', which signifies nobility or high birth. While it is a contemporary creation, it carries a sense of vintage charm through its phonetic similarity to classic names.
Less common today
Addalie isn't in the latest US Top 1000. It last peaked at #6,961 in 2014.
US births per 5-year period, 1990βpresent (SSA data).