dial. A clump of fir-trees on the crest of a hill.
1880. R. Jefferies, Gr. Ferne F., vi. ‘Every hill seems to have a Folly,’ she said, looking round. ‘I mean a clump of trees on the top.’
1888. Berks. Gloss. There are three such ‘vollys’ at Hampstead Norreys on the ‘Volly Hill.’
