Baiern

Proper noun

 * 1)  the territory and chiefdom of the Bavarian tribe, chiefly before the creation of the
 * 2)  the area where Bavarian dialects are spoken (comprising only part of modern Bavaria, but most of Austria and South Tyrol)

Usage notes

 * The above distinction between and  is usually maintained in historic and linguistic scientific literature; otherwise only the ay-spelling is usual today. And, Baiern was the original "Bayern" and Bayern was used in 1825.