"Blend of Emily and Lynn"
The name Emilynn is commonly a female name from the "English" origin.
Emilynn is a modern American formation that combines the established given name Emily with the element Lynn, the ending that appears in many twentieth and twenty-first century American names such as Kaylynn and Raelynn. The name does not appear in United States birth records before 1999, which fits a name built from existing names rather than one inherited from an older naming tradition. The spelling with a single l and doubled n reflects the overlap of the y at the end of Emily with the start of Lynn.
The pronunciation of Emilynn is EM-ih-lin.