An Etymological Dictionary of the German Language/Dogge

by Friedrich Kluge

Dogge, f., ‘bulldog, mastiff’ simply ModHG., from the equiv. Du. and E. dog (from about 1050 A.D. the word occurs in AS. as docga), whence also Fr. dogue. With regard to HG. gg, as a proof of a word being borrowed from LG., comp. Flagge.