There's (linguistic) genetic relatedness, and then there is https://en.wikipedia.org/wiki/Sprachbund https://en.wikipedia.org/wiki/Sprachbund . Similarly, alth

There's (linguistic) genetic relatedness, and then there is https://en.wikipedia.org/wiki/Sprachbund https://en.wikipedia.org/wiki/Sprachbund . Similarly, although Northern Saami and Norwegian are not genetically related, there is so much borrowing of terms (also same alphabet) due to shared geography/history that it's easier for a speaker of Norwegian to learn Northern Saami than it is to learn Kildin Saami (more borrowings from Russian, also different alphabet, while very related to Northern Saami) or Korean/Nahuatl/… (just as genetically unrelated, completely different Sprachbund)