Naming a child turns out to be one of the hardest things you can do. The secret to nailing it is to avoid choosing something outlandish or freakish at one extreme – but then sidestep the trap of settling on something profoundly mundane at the other.

Unless you are a rock star or a tech billionaire, for instance, it best to avoid the following: Tree-stump, Treble Clef, or a non-verbal sign that was formerly adopted by the artist Prince when he was still a going concern – these are not the imprimatur available to the majority of us who have to...