Prus·sian 
(prŭshən)
(prŭshən)adj.
1. Of or relating to Prussia or its Baltic or German inhabitants.
2. Suggestive of or resembling the Junkers and the military class of Prussia.
n.
1. Any of the western Balts inhabiting the region between the Vistula and Neman Rivers in ancient times.
2. A Baltic inhabitant of Prussia.
3. A German inhabitant of Prussia.