"Guest, I am unsure what you mean by that. Gaelic was and....." I think he wasn't talking about Gaelic. Rather he was talking about the Scots language (ie Lowland Scots) which is more often than not just called Scots. Lallans did seem to mean at one time Lowland Scots as a whole. In the 20thC some people started to use the word Lallans more to describe the literary form of Scots which re-emerged in the aftermath of Hugh McDiarmid's initial works. So I suppose it depends on who's talking to what they mean by Lallans! Though the regular publication called Lallans, issued by the Scots Language Society, includes not just literary Scots but works in the actual dialects too.