Long for Rownie

I’m babysitting my niece today, and her mother got her and her sister two little tiny dolls and I asked my three year old niece what there names were and she said “[name]Tara[/name]'s is called [name]Milly[/name] and mine has no name” and I said “Well you have to call her her own name” and she basicallly heard “you have to call her rownie” and so thats her name. Then i stated thinking what Rownie could be a nn for. So far I have [name]Rhona[/name] and [name]Rowan[/name]