This is the 6634th most frequent German word.
erbeuteteürussische
The word "erbeuteteürussische" is not standard German. It seems to combine elements like "erbeutete" (captured) and "russische" (Russian), possibly indicating "captured Russian [object]."
Here, 'erbeuteteürussische' describes a 'Russian map' that was captured, indicating the adjective's function to describe the origin and the status of the object.
Die Soldaten fanden eine erbeuteteürussische Karte im Lager.
The soldiers found a Russian map captured as loot in the camp.
In this sentence, 'erbeuteteürussische' modifies 'Waffe' to indicate its provenance and that it was taken during a conflict.
Eine erbeuteteürussische Waffe wurde im Museum ausgestellt.
A Russian weapon captured as loot was displayed in the museum.
Here, 'erbeuteteürussischen' qualifies 'Uniformen,' giving details about their origin and how they were obtained.