I would lean [name_f]Eleanora[/name_f] nickname [name_f]Nora[/name_f]. I like the elegance of [name_f]Eleanora[/name_f] and the flexibility. If [name_f]Nora[/name_f] doesn’t feel like a [name_f]Nora[/name_f], she can always go by [name_f]Ellie[/name_f], [name_f]Leni[/name_f], [name_m]Rory[/name_m], or [name_f]Eleanora[/name_f] in full. I also knew a little [name_f]Eleanora[/name_f] who was so gentle and enthusiastic so I have a soft spot for the name now.
However, that’s also the potential downside. If you don’t like the other potential nicknames or are really attached calling her [name_f]Nora[/name_f], [name_f]Nora[/name_f] might be the winner. And [name_f]Nora[/name_f] is a lovely, warm choice as well.
Another deciding factor could be your other children’s names. Obviously, some families have more cohesion between siblings names than others and there’s nothing wrong with siblings having all different names. But if your older two are [name_f]Tessa[/name_f] and [name_m]Luke[/name_m], a little [name_f]Eleanora[/name_f] might feel overdressed. Similarly, a [name_f]Nora[/name_f] with siblings named [name_f]Evangeline[/name_f] and [name_m]Aurelius[/name_m] might wonder why her name is so much simpler. It’s a small thing, but it could help break the tie.