hmm. i am supposed to be a native speaker (but i am HOPLESS at the language. i much prefer the bit of german i know
) but as far as i know middle is "lár" .but maybe you are correct in a sence that scottich-gealic might be a bit diferent to irish-gealic. i dont really know.
but what i do know is that meath was very important, in that it contained the Hill Of Tara, the home of the high kings. it is a SERIOUS mistake to say it was not important, just because it was small, and has now emalgimated with another provice ( i know that the province (leinster) it has assimilated into is NOW the province of the capital, Dublin)