Is it tru, the welsh got their name from the anglo saxon word weylash, meaning t

Question:

Is it tru, the welsh got their name from the anglo saxon word weylash, meaning traitors?

i understand thats where it comes from, i dont know if its the proper spelling, also, did scotland, ireland and cornwall get their names from the angles, who gave us angleland, (england)

Best Answer - Chosen by Asker: Scotland is named for the gaelic speaking tribe that came from Ireland around the early 4 century they left what is now present day Ulster,Ireland and settled in what is now present day Argyll,Scotland and founded the Kingdom of Dalriada. Now Scotland already had a race of people living there known as the Picts whose origins are complex and mysterious as they had no written langauage which to leave there history. before this Scotland had many names "Alba" and "Caledonia" which is from the Roman name for a Picttish tribe called "Caledonii". Now England gets its present name from the Angles a race of War like people who Invaded and settled toward the end and at the end of Roman occupation of Britian and founded many early Angle kingdoms which were Nord Angelnen,Ost Angelnen, Mittlere Angelnen which are today know as Northumbria,East anglia,Mercia, That had many genetic and cultural ties to the Saxons and have been lumped together as the "Anglo-Saxons". Not sure about the Welsh being traitors,more likly the English corrupted this name to mean traitor The welsh language is one of the oldest Gaelic languages and had a great kingdom long before the English started. And were independent up until King Edward invaded Wales in 1277 and took control of its lands.Now the Cornish are supposedly named from the old English word wealhas meaning " foreigners, Britons"but it could also come from the Romans who called them "Cornovii" they had there own Gaelic language which had almost died out or is close to it,but hopefully will be saved with the resurgence of Gaelic culture.
Well I hoped this helped I generalized alot sure many other people will have better answers.

p.s. It appears Welsh is from the Brythonic branch of Celtic spoken in Wales today my apologies for not knowing this.
http://en.wikipedia.org/wiki/welsh_langu...
http://en.wikipedia.org/wiki/cornish_lan...
So is Cornish like I said I was generalizing didn't mean to step on anyone toes. And no I love England my mothers family is from England.