Craic: Nelson not correct on origin
I agree with Nelson McCausland (DebateNI) in as much that I, too, don't like the word 'craic', mainly because it is overused and in my opinion has become trite and meaningless.
However, with regard to its origins, I'm sorry to have to inform him that he is not correct. Yes, the word is and was used in Scots, including Ulster-Scots where it meant conversation; it came into Scottish Scots from Scottish Gaelic - ie 'cracas'.
Cracas is a Gaelic hybrid of 'cra' and 'cas', which, roughly translated, means "discussing matters of sorrow and joy".