"Blend of Lou and Etta"
The name Louetta is commonly a female name from the "English" origin.
Louetta combines Lou, the short form of Louise or Louisa, with the feminine diminutive ending -etta, which also appears in names such as Henrietta and Rosetta. It is recorded in United States birth data from 1880, and its shape matches other nineteenth-century American feminine names built from a short form plus that ending.
The pronunciation of Louetta is loo-ET-uh.