The Altaic “macrofamily” mentioned here is deemed controversial as is the relation between Japanese and Korean. From a cursory research in this topic I think th

The Altaic “macrofamily” mentioned here is deemed controversial as is the relation between Japanese and Korean. From a cursory research in this topic I think that many discussions (on either side of the debate) are at least partly motivated by national feelings and politics and it’s sometimes hard to discern where this ends and real science begins. There’s a large body of writing in this topic, one easy starting point is: https://en.m.wikipedia.org/wiki/Altaic_languages https://en.m.wikipedia.org/wiki/Altaic_languages. Unfortunately, some in-depth research good resources I have seen accessed in Turkish are not referenced here. The comparison of Altaic languages with some in Europe, e.g. Finnish and Hungarian was based on some similarities: 1. Being agglutinative 2. Having vowel harmony 3. Lack of grammatical gender 4. SOV word order However, AFAIK, not much evidence could be found at the cognate level.