"Blend of Bre and Lynn"
The name Brelynn is commonly a female name from the "English" origin.
Brelynn is a modern American formation that joins Bre, a short form of names such as Breanna and Brenda, with the common name element Lynn. It belongs to the group of -lynn coinages that begin appearing in United States birth records in the late twentieth century. Nothing in the record supports a meaning or an earlier use in a documented naming tradition.
The pronunciation of Brelynn is BREE-lin.