Eldoris is a distinctive and unusual given name of American origin, derived from an Old French surname, 'Heldor'. It was introduced to England by the Normans during the medieval period. While its meaning and etymology are not explicitly clear, it's believed that 'Heldor' may have been derived from Germanic elements such as 'hild' meaning 'battle' or 'war', and 'rīc' meaning 'powerful'. Eldoris was popular in the United States during the late 19th to mid-20th centuries but has since become quite rare, making it a unique choice for parents seeking an uncommon name.
"Eldoris experienced a peak in popularity during the early 1920s with seven births each year from 1920 to 1922. The name's use dipped after that but saw another rise in the late 1930s, with five or more births per year from 1935 to 1940."