"Latinate form of the Gaelic Caoilfhionn slender and fair See CAOILFHIONN"
The name Coelfinnia is commonly a female name from the "Irish" origin that means "Latinate form of the Gaelic Caoilfhionn slender and fair See CAOILFHIONN".

The pronunciation of Coelfinnia is KO-EL-FIN-NEE- AH.