Ref.: https://news.ycombinator.com/item?id=48707337 https://news.ycombinator.com/item?id=48707337 So, I mean viz the national languages, dialects, etymology,

Ref.: https://news.ycombinator.com/item?id=48707337 https://news.ycombinator.com/item?id=48707337 So, I mean viz the national languages, dialects, etymology, etc., which I suppose have been forgotten in many places.