synonym of 流星 (ryūsei, “meteor, shooting star, falling star”)
köken: Compound of 流れ (nagare, “flowing, streaming”, the 連用形 (ren'yōkei, “continuative or stem form”) of verb 流れる (nagareru, “to flow, to stream”)) + 星 (hoshi, “star”). The hoshi changes to boshi as an instance of rendaku (連濁). Derived as the native Japanese reading of Middle Chinese-derived 流星 (ryūsei). First attested from 1137.
köken: Learned borrowing from Sanskrit उल्का (ulkā́, “meteor”), which is probably related to Sanskrit वर्चस्- (várcas-, “luster”), from a root Proto-Indo-Iranian *warč-. Cognates include Hindi ऊक (ūk, “torch”), Bengali ঊক্ (uk, “torch”), Odia ଉକା (ukā, “torch, flash of fire, meteor”), Punjabi ਉਲਕਾ (ulakā), Assamese উকা (uka, “ignis fatuus”), Persian ورج (varj, “dignity”).
उल्का वर्षा
परंतु पंकज इधर-उधर ऊपर-नीचे होकर बचता रहा। अचानक दोनों के बीच में एक बड़ा सा उल्का पिंड आ गया।
köken: From stjerne + skud. Cognate with Norwegian Bokmål stjerneskudd, stjerneskott, Norwegian Nynorsk stjerneskot, stjerneskott and Swedish stjärnskott, nowadays only used figuratively.