Origin: German

Earlier form Russ from German Russe etc., from Old East Slavic Русь (Rusĭ). More recent use influenced by Russian Русь (Rusʹ), from Old East Slavic Русь (Rusĭ). Use with macron was probably influenced by the transliteration of Arabic رُوس (rūs). Compare Russ, Russian, Russie, Russniak, Rusyn, Ruthenian. Also compare Swedish Ryss, Dutch Rus, German Russe, French Russe, Byzantine Greek Ῥῶς (Rhôs), Russian Русь (Rusʹ), Belarusian Русь (Rusʹ), Ukrainian Русь (Rusʹ). Also compare Russian ру́сский (rússkij, “Ethnic Russian, of Rus”), россия́нин (rossijánin, “Russian national”), Росси́я (Rossíja, “Russia”). See further Etymology of Rus and derivatives.

Etymology: Wiktionary (CC-BY-SA)