definitions

Old Prussian

noun

a Baltic language extinct since the 17th century. Abbreviation: OPruss

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Origin of Old Prussian

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for old prussian

Old Prussian

noun

the former language of the non-German Prussians, belonging to the Baltic branch of the Indo-European family: extinct by 1700
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012