"Blend of Bray and Lynn"
The name Braylyn is commonly a unisex name from the "English" origin.
Braylyn is a modern American formation built from the element Bray, which also appears in names such as Brayden and Braylon, combined with the ending -lyn found in names such as Kaylyn and Raelynn. Both are productive name elements in late twentieth century United States naming rather than parts of an older inherited name. The name does not carry a meaning from an earlier language tradition; its sense is only the combination of those two elements.
The pronunciation of Braylyn is BRAY-lin.