Nero

Nero is a Latin cognomen of uncertain origin — possibly from the Sabine language, meaning 'strong, brave, or vigorous,' or possibly connected to Latin niger (black). The Roman Emperor Nero (37–68 AD), the last of the Julio-Claudian dynasty, made the name historically famous, though not favorably so.

Nero is a name that courts some historical complexity, which is precisely its appeal for a certain type of pet owner. The emperor Nero was famously excessive, impulsive, and impossible to ignore — which maps onto a particular kind of cat or dog with zero self-restraint and enormous personality. The dark, strong sound of the name also suits black-coated animals, where the connection to the Latin niger (black) makes it feel almost descriptive. For dogs, it tends to fit large, commanding breeds who have decided that the rules of the household apply to everyone except themselves.