This name derives from the Cornish “Gwenhwÿfar”, composed of two elements: From the Proto-Brythonic “*gwindos”, and Proto-Celtic “*windos”, meaning “white, fair” plus from the proto-Celtic “seibrā (hwyfar)”, meaning (phantom, spirit). The name means “the white fay, white phantom, white spirit”. In Arthurian legend, Gwenhwÿfar was the wife of King Arthur. It became a common first name for females in English-speaking countries during the 20th century. The name Jennifer has been in use since the 18th century. Before 1906 the name was fairly uncommon, but it gained some recognition after George Bernard Shaw used it for the main female character in The Doctor's Dilemma.