"Blend of Olivia and -ana"
The name Oliviana is commonly a female name from the "English" origin.
Oliviana is a modern formation built on the name Olivia, with the feminine ending -ana added to it. That ending is common in feminine names of Latin and Italian background, as in Juliana and Liliana, and it gives Oliviana an Italianate shape even though the elements are Olivia plus the suffix. Olivia itself comes from the Latin oliva, meaning olive. The name does not appear in United States birth records before 2001.
The pronunciation of Oliviana is oh-liv-ee-AH-nuh.
