Names. They are necessary for characterization when writing. I have a 'naming' book I use if my stories are short and punchy. The book provides simple meanings for basic names of most nationalities. I also have reference books for the specific cultures I might feature.
If I wish to portray a female character who'll be a strong warrior and lead a clan into battle, I'll go to my reference material and search for a name that provides those characteristics. Aife is a Celtic name of a great warrior woman of myth.
When you are choosing names for your characters, be cautious not to make them sound alike if possible. You don't want your readers paging backward to remember if it was Bill or Phil who is the bad guy. They'll do it once. Then the book goes in the trash and you lose a reader.
If you decide on a name and something nags at you that the name is familiar, check it. While names can't be copyrighted, they can be so heavily identified with a character, you'll appear to be plagiarizing someone else's work. Not a prospect I want to consider.
There is a world of names out there and some have unique meanings. Spend time to give your characters an identity from the start. After all, most of us know who Albus Dumbledore is, don't we?
Mistress of the Red Ink Pens