the metal that kills germs, conducts everything, and still lost the gold medal
means A soft, lustrous white metal prized for its shine, its unmatched conductivity, and its long history as money and tableware — and, by extension, the bright grayish-white color of that metal.
from From Old English 'seolfor,' with relatives all across the Germanic family — Dutch 'zilver,' German 'Silber,' Gothic 'silubr.' The trail goes cold beyond that: the deeper root is genuinely unknown, possibly borrowed from some pre-Indo-European language of the ancient Near East or the Mediterranean, where silver was first mined and traded. Tellingly, the Germanic and Balto-Slavic words don't match the Latin 'argentum' or Greek 'argyros' (those come from a root meaning 'shining white'), which suggests 'silver' arrived as loot or trade-goods rather than inherited speech.