Argentum

Argentum (Japanese: アヴァリティア, Avaritia) is a group of Titans in Xenoblade Chronicles 2. The largest of the Titans, Goldmouth, looks like a flying whale. The mercantile nation Argentum Trade Guild grew up on a ship attached to this Titan who serves to navigate like a balloon. This ship is a great marketplace. Argentum is only large enough to hold the manmade structures of the city—there is generally no wildlife on the Titan itself. Because it always floats on the surface of the Cloud Sea, it is not affected by the tides.

Area

 * Goldmouth

Etymology
Both the Japanese and English names allude to one of the seven deadly sins, greed/avarice, the former using the Latin word and the latter is the Latin word for silver, or collectively, coins made from silver.