platinum

From Spanish platina (“little silver”) del Pinto ("of the Pinto") + -um. It was called "little" (or "lesser") silver because the metal was found as an impurity in gold, and del Pinto for the Pinto River in Gran Colombia where Europeans discovered it being mined by Native Americans. Doublet of platina.

出典: Wiktionary「platinum」（CC BY-SA 4.0）