in the archives of February I have found a message from you about Gwydion.
I'm not sure about the Mid.W. standard spelling of the name, but might Gwydion
represent /gwyddion/ ? (There are some examples for the use of -d- instead of
Mod. -dd-, cf. Mid.W. rut (mit "Auslautverhärtung" instead of *rud) = rhudd)
It seems similar to Gwion, a "prae-birth" name of Taliesin, often compared with
Gwyn, one name of the God of Annwn.
If both names belong together, there have been a Brit. *vijon- < *vion- (cf.
dydd < *dijo- < *dio- < *divo- ~ Duw), but I don't know about the existence of
such a root. However *vion- would look quite strange strange beside *vindo-
What is the origin of the Gael. fionn beside of older finn/find ?
Might the -io- of Gwion be a late Welsh developement of -i- ?
Any idea ?