What is the nameof the Legendary being resembling an old man guarding hidden treasure?

The legendary being resembling an old man who guards hidden treasure is often referred to as a "Gnome" or "Dwarf" in various mythologies. In folklore, these beings are typically depicted as wise and reclusive, protecting their riches from those who seek to steal them. Another similar figure is the "Dragon," which also symbolizes guardianship over treasures in many cultures.