ancient burial mound, 1680s, from Latin tumulus "hillock," from tumere "to swell" (see thigh).
in England, ancient burial place covered with a large mound of earth. In Scotland, Ireland, and Wales the equivalent term is cairn. Barrows were constructed in England from Neolithic (c. 4000 BC) until late pre-Christian (c. AD 600) times. Barrows of the Neolithic Period were long and contained the various members of a family or clan, while those of the Early Bronze Age (c. 1900 BC) were round in shape and were used to bury a single important individual, perhaps a chief or clan leader. The bodies were placed in stone or wooden vaults, over which large mounds of soil were heaped. Both types of barrows continued to be used in England until the advent of Christianity. Their sites are most common in the county of Wiltshire.