Em

Em is an English diminutive, functioning as a short form of names beginning with the letters Em-, most commonly Emma or Emily. Emma derives from the Germanic element ermen, meaning whole or universal, while Emily traces back to the Latin family name Aemilius, of uncertain but possibly Etruscan origin. Em has been used as an affectionate pet form for centuries and occasionally appears as an independent given name in its own right. Related forms include Emmy, Emmie, and the full names Emma and Emily.