My original name (Benzene) came from when I was studying chemistry and thought it sounded cool.
My current name comes from the Morrow Days (Mr. Monday, Grim Tuesday, Drowned Wednesday, Sir Thursday, Lady Friday, Superior Saturday and Lord Sunday), a group of supremely powerful, semi-deific beings from the Keys to the Kingdom series by Garth Nix. They're kids books, but have some very adult concepts and tone.
Plus they're just the coolest books I've ever read, settings wise. I feel like the author just sat around thinking up cool names and found ways to fit them into the story (and it worked).