Noble or of noble kind
Adalyne is a modern American variation of Adeline, which itself is a French diminutive of Adele. It ultimately derives from the Germanic element 'adal', meaning noble. This specific spelling adds a contemporary flair to a classic root.
Less common today
Adalyne isn't in the latest US Top 1000. It last peaked at #2,071 in 2016.
US births per 5-year period, 1990βpresent (SSA data).