köken: Borrowed from Russian цирко́ний (cirkónij), from German Zirkonium (“zirconium”), from German Zirkon (“zircon”), both formed in the 1780s from Arabic زَرْقُون (zarqūn).
zirconium (a chemical element (symbol Zr) with an atomic number of 40, a strong, lustrous, grey-white transition metal mainly used as a refractory and opacifier)
From German Zirkon (“zircon mineral”) via French zircon, formed in the 1780s from Arabic زَرْقُون (zarqūn, “zircon, minium”), from Middle Persian 𐭦𐭫𐭢𐭥𐭭 (zlgʿn /zargōn/), from Classical Persian زرگون (zargōn)/Middle Persian 𐭦𐭫𐭢𐭥𐭭 (zlgʿn /zargōn/, “red lead”), from Proto-Iranian *jr̥Hanyam (“gold”). Doublet of ζιργκόν (zirgkón).