I've been told previously that the ScG -ich and Irish -igh endings have different historical antecedents. I may have been told wrong -- but that's what I was told.

Of course, even if that's true, both Irish and Islay Gaelic have generalised the -igh to be a phonetic rule, so either way, it's not important in the grand scheme of things.

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A language belongs to its native speakers, and when you speak it, you are a guest in their homes.
If you are not a good guest, you have no right to complain about receiving poor hospitality.

I find this an interesting discussion as I've often wondered why Irish didn't like slender ch at the end of words yet SG does.

This board is the freshest when it comes to Irish, but the only thing it misses is (apart from more natives and more SG people) is the sort of erudite input Daltaí must have had years ago. When you look through the archives, you see all sorts of characters bringing deep-layer knowledge of Old and Middle Irish beyond most of us here.

I suppose most of them are older and/or bored with the topics or moved on now

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