(French) form of Julia. This was imported to the English-speaking world in the 1920s, and soon became a great favourite. Its popularity was increased in the 1960s by the fame of the British actresses Julie Harris (b. 1925), Julie Andrews (b. 1935 as Julia Wells), Julie Christie (b. 1940), and, more recently, of Julie Waters (b. 1950).
English, Scottish, and Irish: from Middle English whit ‘white’, hence a nickname for someone with white hair or an unnaturally pale complexion. In some cases it represents a Middle English personal name, from an Old English byname, Hwīt(a), of this origin. As a Scottish and Irish surname it has been widely used as a translation of the many Gaelic names based on bán ‘white’ (see Bain 1) or fionn ‘fair’ (see Finn 1). There has also been some confusion with Wight.