It takes a lot of forbearance to deal with some of the people who post here.
Yup, the word forebore was in fact a transitional form, and thus the subject of much disputation.
Even now, gramaro-paleontologists are trying to decide which clade to place it in. Rumor has it that even Noam Chomsky is baffled.
(Ducking for cover, running for exit)
Cheers!