a dead language of the (non-German) Prussians (extinct after 1700); thought to belong to the Baltic branch of Indo-European
A member of the Baltic tribe that historically inhabited Prussia; a Baltic Prussian.
Of or pertaining to the Old Prussian language or people.
An extinct Baltic language, once spoken by the Old Prussians, the indigenous peoples of the historical region of Prussia (now north-eastern Poland, the Kaliningrad Oblast of Russia and Lithuania).