Sudovian(Sūduvių), or also called Yatvingian(Jotvingių) is West Baltic language, that was spoken in west south of river Nemunas, in nowadays East Prussia and West South Lithuania(Now there formed West Aukstaistish(vakarų aukštaičių/suvalkiečių) dialect, that gave foundaton to common grammar Lithuanian language that is public spoken and writen). It was closely related to Prussian language, because prussian and sudovian separated aproximately in X a. A.D. At the times of peace and quiet in Europe, Baltic languages was closely related one to other. Accually it was one language with very minor fluctuations between each other, less than in example dialect in nowadays Lithuanian language. Of course it envolved, because of influence of other nationalities... Baltic people was losely related to progenies of Old European and Finnic people from North. But language changed it all. I think baltic people was quiet isolated...<...> West Baltic languages are even more archaic than Lithuanian, bet there was a lot more borrowings from germanic languages. Like East Baltic languages were geographicly more related to slavic nations, so West Baltians were closer related to german people. Germanian tribes just migrated throught lands of prussians. Good link to reconstructed Sudovian language: http://www.geocities.com/Athens/Ithaca/6623/ I want to show you how many borrowings is there in this dictionary and how archaic languages are extinct West Baltic languages. So you know, word dictionary in Sudovian is virdainas. It is a form of word virdan- word. You can see how similar sounds word virdan and word. Also you can see, that virdan has neutral ending -an. All nouns (substantivus) has got genders (genus)- masculine and femmine in Modern Lithuanian and Latvian languages, but virdan is neutral. Also you can see, that it is germanic borrowing...