Etymon
es-plata-protoindoeuropean-nos-protoindoeuropean-ihnos-protoitalic-inos-latin-inus-spanish-ina-spanish-platina-english-um-english-platinum-protoindoeuropean-ghelh3-protoindoeuropean-ghlh3enyomder
A dedicated page for this root is on the way — it will gather every word descended from it, sibling forms across daughter languages, and a branching map of the family tree.