Fair one, white wave
A rare variant of Jennifer, which is the Cornish form of the Welsh name Gwenhwyfar. It combines the elements 'gwen' meaning white or fair and 'hwyfar' meaning smooth or soft. While Jennifer was a dominant name in the late 20th century, this specific spelling remains an uncommon alternative.
Less common today
Jannifer isn't in the latest US Top 1000. It last peaked at #7,701 in 1994.
US births per 5-year period, 1990βpresent (SSA data).