Delois is an uncommon given name, of American origin. It was created during the early 20th century and is believed to be a blend of two popular names at the time: Dell (a short form of Delbert) and Lois. This name choice may have been inspired by the trend of creating unique female names by combining elements from other names.
"Delois experienced peak popularity in the early 1930s, with seven or more births occurring each year from 1933 to 1938. However, it appears the name's usage tapered off by the late 1940s."