I knew a French girl named Daphne, in French it's just pronounced with the weight on the end. Instead of DAF-nee it's Daf-NÉ (Daf-NAY). This girl pronounced it Daf-NEE, another option. I'm not sure if this is what you wanted, but anyways. I assume that if there were a different, more "French" version that's what she would have been named. As a bilingual person I don't think DAN-yay or any other similar name comes from French because I have difficulty trying to figure out how you would say it in French without it sounding like Danny.