Greg

Greg is an English short form of Gregory, which derives from the Latin Gregorius, itself from the Greek Gregorios, built on the root gregorein, meaning to be awake or to be watchful. The name gained widespread use in the Christian world largely through the influence of Pope Gregory the Great, the sixth-century pontiff who shaped medieval church organization. Greg became especially popular as a standalone given name in the twentieth century, particularly in English-speaking countries. Related forms include Gregory, Gregg, and the Scottish Gaelic Griogair.