old prussian

Noun
  1. A dead language of the (non-German) Prussians (extinct after 1700);
    Thought to belong to the Baltic branch of Indo-European (synset 106958779)
    is a type of: baltic, baltic language - a branch of the Indo-European family of languages related to the Slavonic languages; Baltic languages have preserved many archaic features that are believed to have existed in Proto-Indo European

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