波は斯しはしMeanings1nounPersia; Sasanian EmpireFormer Chinese-derived name for Persia, especially the Sasanian Empire. Rare in modern Japanese; used in historical or literary contexts.波は斯しはシルクロード交こう易えきで栄さかえた古こ代だい帝てい国こくの一ひとつである。Persia was one of the ancient empires that flourished through Silk Road trade.