It is relatively easy to teach a dog her new name.
Keep doing this in different formats. Say the dog's name from across the room, and when she comes to you, give her a treat.
Soon enough, the dog should respond to her name.
I had a dog once and changed her name back and forth. I don't think animals care much about their name. They care about tone of voice and inflection.
Don't be afraid to change your dog's name. Reward her for being such a good sport about it!
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