sarmatian

from The Century Dictionary.

• noun In geology, the uppermost stage of the Miocene Tertiary in the Vienna basin.
• Of or pertaining to Sarmatia, an ancient region extending from the Volga vaguely westward, identified poetically with Poland; pertaining to the inhabitants of this region.
• noun A member of one of the ancient tribes, probably of Median affinities, which wandered in southern Russia, Hungary, and elsewhere. The Sarmatians became merged in other peoples.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to Sarmatia, or its inhabitants, the ancestors of the Russians and the Poles.