9 letters · 14 points in Scrabble
noun a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewel
originThe sense of "safeguard" comes from Latin Palladium (the image of Pallas that protected Troy), from Ancient Greek Παλλάδιον (Palládion), from Παλλάς (Pallás), an epithet used before Athena.
Etymology from Wiktionary, CC BY-SA 3.0