Using the scheme "lie" pronounced as in 'falsehood', claidheamh da laimh would be 'clieyev da lie' (some people pronounce it more like 'clieya' with a nasal sound at the end); and claidheamh mor would be 'clieyev moor' (or 'clieya moor').

I've had a thought for some time that maybe there's a much older usage hidden here. Could the 'claymore' be 'mor' with reference to a smaller sword - such as the Roman gladius which acquired widespread use at the end of the Roman Occupation and its descendants carried on a while in Britain. So, could the dirk (biodag) be the 'small sword', as it is traditionally worn in the same way as the gladius - and so the claymore would thus be bigger than it? And so, the two-handed sword would be a mediaeval oddity and not the great sword.