Gnaeus

Gnaeus was one of the most common forenames used by the ancient Romans (there were only 40 or so to choose from). It is thought to have originated as a name for babies with birthmarks, although it was just as often used for family reasons. Many Roman names, like Titus and Caius, are back in fashion now, but Gnaeus just isn't so accessible to modern English speakers.

Pronounced NAY-us.