kistvaens

It is hard to estimate how many valuable antiquities have been similarly destroyed by carelessness and ignorance; but such ruin has been more often suffered by stone monuments, longstones, kistvaens, snatched for use as gate-posts and walls by heedless farmers and builders.

The Cornwall Coast

However, after deducting any objects of doubtful antiquity, there remain an enormous number as to which, there can be no question -- stone rows, kistvaens, menhirs, large circles of upright stones, forts and barrows, and pounds enclosing hut-circles.

Devon, Its Moorlands, Streams and Coasts Rosalind Northcote