I think Fionúir/Fionnuir could be a good transcription (Anglicizations are Fennore, Fennor, and Finora). It means "white ghost." Jennifer
is a Cornish form of Gwenhwyfar
), which BtN says means "white" + "smooth," which I've also seen in other places; however, in some places I've also seen it translated to "white" + "phantom/ghost" or something like that. The first comment on Guinevere
in the database says it's "From the Gaelic meaning "pale phantom", according to Lady Mary Stewart
in her Merlin
I've never seen an actual Gaelicization of Jennifer
before, but maybe someone else might know if one exists.