The two tribes, however, had been dependents in their prosperity, so they shared that same adversity on equal terms during their decline. The etymological origin of the name Fosi is not known with certainty. The name may derive from the proto-Germanic *fuhsaz, signifying "fox".
The two tribes, despite their prosperity, faced similar challenges during their decline. The origin of the name Fosi is unknown but may be derived from the Proto-Germanic word *fuhsaz, which means "fox".