A proposed grouping of the Altaic (
Turkish, Mongolian
?, Kazakh
?, Manchurian
? etc. plus perhaps
Korean and
Japanese ) and Uralic (
Hungarian,
Finnish and
Estonian mostly) into one language group. Cases can be both made for and against this. Both groups follow the principle of vowel harmony, are agglutinative (stringing suffixes, prefixes or both onto a single root)and lack any way for expressing grammatical gender. However, the vocabulary of both groups does not correspond, except for borrowings. Thusly it remains for the linguists of the future to prove or disprove this proposal.