This is not to be conceded.

In the former the root is unchangeable, the formative elements follow it, and prefixes are not used; in the latter prefixes are common, and the formative elements are blended with the root, both undergoing changes of structure.

Very important differences.
[9-1] Grimm, _Geschichte der Deutschen Sprache_, p.

571.
[11-1] Peter Martyr, _De Insulis nuper Repertis_, p.

354: Colon.