nebula

Learned borrowing from Latin nebula (“little cloud, mist”). First attested in 1655. Akin to Ancient Greek νεφέλη (nephélē, “cloud”), German Nebel (“mist, nebula”), Old Norse nifl, Polish niebo (“sky, heaven”), Russian не́бо (nébo, “sky”).

出典: Wiktionary「nebula」（CC BY-SA 4.0）