Those would be dated names. I had an Aunt Bertha, “bright one”
https://en.wikipedia.org/wiki/Bertha.
I looked up Ethel: “noble maiden”.
https://nameberry.com/babyname/Ethel. The only Ethel I knew of was on I Love Lucy, a 50s TV show.
My Dad’s name is Melvin, also dated: “council protector”
https://nameberry.com/babyname/Melvin.
My grandson’s name is Riker. You’ll never guess where that came from.
An aspect of many names where the meaning of the name is not commonly known, it’s less ostentatious than naming you child something like Bright One or Noble Woman. If those descriptive words are used the name would become silly as a name in modern society.