Core component of case systems in the Baltic, Finnish and Ugric languages

In Baltic and Finnish the development of abstract cases (Instrumentalis, Sociative, Comitative, Translative, Dative) on the base of Locative cases (mainly n- and t- ) is accompanied by the enlarging the Genitive Case functions and new word category creating (qualifying and relative adjectives, possessive pronouns). Reconstruction shows that there is the same process in the Ugric languages. But none of them has the Genitive Case for noun. Hence in the Baltic and Finnish languages the enlarging of the Genitive function is linked to the possession category disappearing one might conclude that in Hungarian the possession category compensates the lack of Genitive.