The Tibetan Mastiff known as 'Dogs-Khyi in Tibetan, reflects its use as a guardian of herds, flocks, tents, villages, monasteries and palaces, much as the Old English Bandog (also meaning tied dog) was a dog tied outside the home as a guardian. However, in nomad camps and in villages, the 'Dogs-Khyi is traditionally allowed to run loose at night. This dog is known for its loyalty and has been used as a nomad dog for thousands of years.