I know that 'Jutland', a part of Denmark, comes from the Danish 'Jylland', which describes the same region. But was that name just invented at random, or does it come from the verb 'jut', as the land juts out into the ocean?
Possibly, it was named that because at one time the Jutes lived there. From etymonline:
Jute: O.E. Eotas, one of the ancient Gmc. inhabitants of Jutland in Denmark; traditionally, during the 5c. invasion of England, they were said to have settled in Kent and Hampshire. The name is related to O.N. Iotar.