Cosmo

Cosmo comes from the Greek kosmos, meaning "order," "world," or "universe" — a word that the ancient Greeks used to describe the beautiful, ordered structure of the cosmos as opposed to chaos. It became an Italian and Spanish given name in the medieval period, most famously borne by the Medici family of Florence. As a pet name, it carries an expansive, exploratory quality.

Cosmo ranks #138 among America's most popular pet names, and it has a wonderful combination of intellectual depth and playful energy. Naming a companion Cosmo is saying something about your taste — you gravitate toward the unconventional, the curious, and the expansive. The name suits a pet with a big personality and an even bigger curiosity about the world, the one who investigates every corner of every room and seems to be conducting a continuous survey of the universe from their perch by the window.