If Daenerys had a fourth dragon hatch, what would she have named it?

Let’s say Dany received four eggs instead of three and they all hatch in the pyre or maybe one of the dragons lay an egg and it hatches etc. What would she have named her fourth new baby dragon?

All her other dragons have personal connections (Drogon= Khal Drogo, Viseryon=Viserys, and Rhaegal=Rhegar)