Bríd Mhór wrote:
That would be my prefered pronunciation too, I think most of the old people say it that way in Conamara. But the other pronunciation is more common nowadays.
The other pronunciation was resurrected from Old Irish, it's basically what the name was like in the 10/11th century. So the new pronunciation is actually a resurrected old one and the pronunciation of the older generation in Conamara is actually the new one!
This happens on a load of surnames. I've heard my surname on recordings from native speakers from my family's native area and it sounds nothing like the "Modern" (but in fact reconstructed old) pronunciation. Same with a million town names in Kildare, Meath and the other eastern counties.
For example Athy is given as:
Baile Átha Í in official documents, but that name is from the 10th century. The actual last native speakers in Kildare in the 1860s said
Bleáthaí.