"Blend of Blake and Lynn"
The name Blakelynn is commonly a female name from the "American" origin.
Blakelynn is a modern American blend of Blake and Lynn, spelled with the -lynn ending that appears in other late twentieth-century formations such as Kaylynn and Braelynn. Blake is an English surname that came into use as a given name, and Lynn is a name derived from Welsh. The name first appears in United States birth records in 1996, which fits a modern coinage rather than an inherited traditional name.
The pronunciation of Blakelynn is BLAYK-lin.