How to say it
ˈæd.ɪ.lɪn
Noble
ˈæd.ɪ.lɪn
A modern respelling of Adeline, from the Germanic 'adal', 'noble.'
Addilyn is a modern American respelling of Adeline, reshaped with the fashionable '-lyn' ending. Adeline traces back to the Germanic element 'adal,' 'noble,' by way of Adalheidis, so the underlying sense is 'noble.' The '-lyn' tail is a fully modern touch, part of the same wave that produced Madilyn and Everlyn. The name first appears in US records around 1999 and has ridden the broad -lyn trend since. It has been easing back lately, slipping from rank 772 to 988 in the 2025 data.
The standard spelling is Addilyn. Common variants include Adilyn, Adalyn, Addilynn, Adeline, but Addilyn is the most widely used form.
peaked at #312 in 2016, currently #988 in 2025.
Source: U.S. Social Security Administration, names given to at least 5 babies in a year, 1880–2025. Reviewed July 2026. See where the names are moving
A -lyn respelling of Adeline; one of several close forms like Adilyn and Adalyn.
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