"Blend of Anna and Lia"
The name Annalia is commonly a female name from the "American" origin.
Annalia is most simply explained as a modern blend of two established given names, Anna and Lia. Anna is a long-recorded name in European usage, and Lia is used as a given name in Italian, Portuguese and Dutch, among other languages, so both elements are independently familiar. The name enters United States birth records in 1994 with no documented earlier history, which fits a late twentieth-century combination rather than an inherited traditional name.
The pronunciation of Annalia is an-NAH-lee-uh.