There was something called "Nostratic" hypothesized by some Russian linguists, I think. But broad though its spread is, I don't think that Proto-Indo European a

There was something called "Nostratic" hypothesized by some Russian linguists, I think. But broad though its spread is, I don't think that Proto-Indo European accounts even for all European languages--Hungarian, Basque, and Finnish being outliers. However, I am not a linguist.