Variant spelling of Jennifer, from Welsh Gwenhwyfar meaning 'white phantom' or 'fair one.'
Jenifer with a single 'n' is the older and more authentically Cornish spelling of a name that most of the English-speaking world now writes as Jennifer. Both forms descend from the same ancient source: the Cornish and Welsh form of Guinevere, the legendary queen of King Arthur. The name traces back through Old French Guenievre to the Brythonic Gwenhwyfar, meaning 'white phantom,' 'white wave,' or 'fair smooth' — an ethereal name that suited the moon-pale queens of Celtic legend.
Guinevere herself is one of the most complex figures in Arthurian tradition: beloved queen, transgressive lover, and tragic catalyst, her choices setting in motion the collapse of Camelot. In Cornwall, where the Celtic Brythonic language survived longest in Britain, the name persisted as Jenifer and Jenniffer long after it had evolved into other forms elsewhere. When it was rediscovered by the wider English-speaking world in the twentieth century, the double-n Jennifer spelling became dominant — but the single-n Jenifer retains a quieter, more archaic authenticity, connecting its bearer directly to those Cornish origins.
The name exploded in popularity in the United States from the 1950s through the 1980s, becoming the most popular girls' name in America for much of the 1970s, borne by two First Ladies' daughters and countless cultural touchstones. Jenifer with one 'n' functions today as a deliberate distinction — a choice that signals awareness of the name's roots and a preference for the road not taken by the mainstream. It is the name in its pre-mass-market form, the Cornish original before the name became ubiquitous. For families with Celtic heritage or a taste for the authentically archaic, Jenifer offers all the familiar warmth of its more common twin with a quieter, more storied character.