"Blend of Lynn and Marie"
The name Lynnmarie is commonly a female name from the "English" origin.
Lynnmarie is a run-together compound of the given names Lynn and Marie, written without a space or hyphen. Both elements are long established English given names: Lynn comes from a Welsh word for a lake, used first as a surname and later as a given name, and Marie is the French form of Mary. Compounds of this kind are a common pattern in American birth records, and this one is recorded in the United States from 1947.
The pronunciation of Lynnmarie is LIN-muh-ree.