If you and your girl have chosen to rename her, choose something that suits her personality.
When babies are born, parents choose a name knowing nothing about whom the child will become. But you, as her Traditional Man, know her better than her parents did when she was born, so choose something that suits her.
Is she a talented musician? Perhaps Melodie would suit her. Is she interested in gardening? Perhaps Rose is an appropriate name. Does she love old movies? Perhaps name her after an old-time movie star.
Or, perhaps, make up a name out of thin air that you feel best reflects her personality.
Whenever you call her by her new name, she’s certain to feel the sense of ownership it projects. Like a tug on a leash, she’ll learn to respond better to her new name than her old one.