An Etymological Dictionary of the German Language/Annotated/Maske

by Friedrich Kluge

Maske, feminine, ‘mask, disguise, masquerader,’ from French masque; the equivalent Suabian and Bavarian maskere is more closely connected with Italian maschera as well as Spanish mascara, ‘division’; compare also Dutch and English masker. Perhaps the origin of the entire class is to be sought for in Romance.