Are the Welsh Ancient Britain's or Celts?

Question

I know that alot of Irish people are of Scotish decent because of what Cromwell did and so their languages are similar and they can understand each other. But my father, a Welsh speaker told me that he can only understand very few words of spoken Irish. Those words being simmilar to Welsh but most of the language is completely different from the Irish and the Scottish. My father and brother say we are not Celts but Ancient Britains and that the Cornish spoke the same language as us. We lived in Britain before the Celts arrived.

Answer 1

Its the other way round in regard to Scots. Scots were tribes of Irish Celts that moved to what was then Caledonia.

Irish and Welsh are from two branches of the Celtic language, Irish, Scots Gaelic, Manx and the CeltIberian languages are one family and Welsh, Cornish, Breton and some Gaulish languages are another family.

Britons are said to have come from Gaul and went up the island where Irish and Manx came from Iberia.

Answer 2

The Britons were Celts. They resettled in Brittany on the mainland. The Welsh are also Celts. There were different subgroups of Celts, with very different linguistic strains. I believe that the Welsh and the Irish are in different subgroups. By the way, Welsh means foreigner. The Cornish were the Cornuii Wealas (foreigners).

Answer 3

I understand the ancient Brits were Celts also. Then then Romans came and then the Germanic Anglo, Saxon and Jutes, then the Danes, then the Normans.