Upper German

Short definition from Wiktionary

Noun

1. 1
   One of two major dialect groups of the High German language; spoken primarily in southern Germany, Austria, Switzerland, Liechtenstein, Alsace, and South Tyrol; distinguished from Central German / Middle German (= Mitteldeutsch) by the shifts of Proto-Germanic *-pp-, *-mp- to -pf-, -mpf-.

Adjective

1. 1
   of the Upper German dialects