From: Old-Irish-L <[log in to unmask]> On Behalf Of Christopher Gwinn
> Can Old Irish final -ir (in multi-syllabic words) can come from a Proto-Irish diphthong -ei-? It is possible that the -wy- in Bedwyr comes from a Brittonic long -ē-.
Yes, it certainly can. The challenge is rather to explain why we would find *ē < PC *ei ̯ in the first place. It's not that common, AFAIK, in suffixal syllables.