"I want to name one of my girls Giovanna but Petronski disagrees."
How about Allegra? I love that name. And it is in the great (well, not great, but old fave) Longfellow (I think) poem, "The Children's Hour". Giovanna is nice too, I love Italian names.
I don't disagree, I just know I'll need to get used to it.
"Jyovanna?"
"No, I don't wanna!"