morgothic:

_{Now of old the name of that forest was Greenwood the Great, […] and there was the realm of King Thranduil under the oak and the beech. But after many years, […] a darkness crept slowly through the wood from the southward, and fear walked there in shadowy glades. […] Then the name of the forest was changed and Mirkwood it was called, for the nightshade lay deep there, and few dared to pass through, save only in the north where Thranduil’s people still held the evil at bay.}