Can someone cite reliable source about Serbo-Croatian (Proto-Slavic) etymology of Arabic word for Austria نمسا (nimsa)? It's sounds very dubious for me. I suppose that we have no evidence of intensive contacts between Arabic world and Slavic.
EDIT: I'm gonna make it not that sensational like in the title. The Arabic word was borrowed not directly from Proto-Slavic, but (most likely) through Ottoman Turkish through some of Slavic language (according to wiktionary).