[hcho]

Multiple layers of creolization is the most likely explanation of common grammatic features and distinct vocabularies.

There's a language called Gagauz, spoken in Moldova. It has a Turkic vocabulary and Indo-European grammar. It was, in its infancy, likely to be a Romanian substrate, Cuman superstrate creole.

An Proto Altaic substrate with various superstrates must have played out quite a few times.