Jeffrey (name) - Wikipedia
https://en.m.wikipedia.org/wiki/Jeffrey_(name)
WEBFrancia, medieval France, Norman England. Other names. Nickname (s) Jeff. Derived. Godfrey, Gottfried. Related names. Geoffrey, Jeff, Jeffry, Jeffy, Jefrey, Jeffery, Jofre, Jeffeory Jefferson. Jeffrey is a common English given name, and a variant form of the name Geoffrey (itself from a Middle French variant of Godfrey, Gottfried ).
DA: 45 PA: 55 MOZ Rank: 84