noun
High German
Refers to the group of German dialects spoken in the highlands of central and southern Germany, Austria, and Switzerland, as well as the standard language based on these dialects.
高地ドイツ語は、標準ドイツ語の基礎となった方言群です。
High German is the dialect group that formed the basis of Standard German.
Compound of 高地 (kōchi, 'highland') + ドイツ語 (Doitsu-go, 'German language').