Meaning of "worn" in the context below
So quiet did it seem and so lonely, that almost one might think that nothing but the wild red deer, or his fierce enemy the slinking wolf, had ever walked this way since the beginning of the world. There was a little path worn among the thick bushes of hazel, dogberry, and traveler's joy, but so narrow was it and so faint that it could well have been worn by the slender, fleeting feet of the doe, or even by the hares and rabbits which had their home in a great bank among the roots of a beech nearby.
Is it an adjective? And does it mean: ragged?
Source: The Merry adventures of Rabin Hood.