Völkerwanderung
Concise Oxford English Dictionary © 2008 Oxford University Press:
Völkerwanderung /ˈfəːlkəˌvɑːndərʊŋ/
▶noun a migration of peoples, especially that of Germanic and Slavic peoples into Europe from the 2nd to the 11th centuries.
– origin Ger., from Völker ‘nations’ + Wanderung ‘migration’.
'Völkerwanderung' also found in these Oxford entries:

