[kettro]

Importantly, there is a difference between comprehension and production. Just because you can mostly understand a language, doesn't mean that it isn't a language in its own right. Yiddish, as an example, has many syntactic differences from German, in addition to its differing vocabulary.

Scots is absolutely a different language from English, despite it being intelligible. I can't produce that speech, even with an accent. It has different rules and formations that My English just doesn't have.