"Blend of Cora and Lynn"
The name Coralynn is commonly a female name from the "English" origin.
Coralynn is a modern American blend, most plausibly of the given names Cora and Lynn, though the spelling could equally stand for Coral joined to Lynn. Cora is an established English given name and Lynn is a given name derived from an English and Welsh surname. The name first appears in United States birth records in the 1950s, which fits a twentieth-century combination of two existing names rather than an inherited one.
The pronunciation of Coralynn is KOR-uh-lin.