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Originally Posted by
Baltic tribes
I’m really surprised how some of the words share so much similarity between Lithuanian and Thracian languages.
Having said that, we cannot rule out a possibility that languages in time import and export some of the words.
The idea of common roots between Balto-Slavic languages is being contested.
For example, Latvian linguist Jānis Endzelīns thought, that any similarities among Baltic and Slavic languages were a result of an intensive language contact, i.e., that they were not genetically related and that there was no common Proto-Balto-Slavic language.
It’s like French and English languages. They’ve got different roots, but today both languages share so many words.
Antoine Meillet , the distinguished French Indo-Europeanist, in reaction to a second simplified theory of Schleicher's, propounded a view according to which all similarities of Baltic and Slavic occurred accidentally, by independent parallel development, and that there was no Proto-Balto-Slavic language.
Although other theories support idea of proto Balto-Slavic language development.
Well since both are Satem language and the paternal lines and autosomal genetics are so closed,between North Eastern Slavs and Lavtians and Lithuanians (I mean people from Belarus,North Russia) ,I doubt that these languages are not coming from a common root.