Sveltje... Mode (=fashion) is not a German word... it is a french word (with a latin origin) who has become german...
do you get my point? languages are evolutive... anyway german or french or english or whatever languages you want (even icelandic and though it was until a very recent time more protected than any other european language is not like it was it Xth century) are not the same than 500 or even 80 years ago... as it is a language is always a mix of language...
english was a mix of germanic, nordic, french and latin roots, german of germanic, french and latin roots, french of latin, germanic, and some other dialects roots etc...
what's the problem with anglicisation?... and is it anglicisation or natural evolution of a language?