Unique and good cat names that start with G?

So I’m writing this teen fiction/Fantasy story about witches, and one of my main characters has a Chartreux, as her animal familiar. And now I’m having trouble trying to figure out what to name it, I want the cat to have a Unique and mystical sounding name, something that seems like something a witch would name their familiar. I’m interested in naming her something that references mythology magic folklore or has dark meanings etc. anything that sounds witchy and isn’t a common pet name, like fluffy mittens or anything lame like that, her cat is a girl so I need either girl or unisex names for her. There’s a picture of the cat to give you an idea of what she looks like, please help me name here