Noble
Adelae is a rare variant of Adela, which stems from the Germanic element 'adal' meaning noble. It shares the same etymological roots as Adelaide and Adele, offering a more unique, lyrical ending. This specific spelling is exceptionally uncommon in the United States, providing a fresh alternative to more popular vintage names.
Less common today
Adelae isn't in the latest US Top 1000. It last peaked at #6,709 in 2013.
US births per 5-year period, 1990βpresent (SSA data).