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An ancient Irish dwelling or fort built on an artificial island in a lake or marsh.
[Irish Gaelic crannóg, wooden structure, pole, from Middle Irish crannóc, from Old Irish, from crann, tree.]
(Archaeology) an ancient Celtic lake or bog dwelling dating from the late Bronze Age to the 16th century ad, often fortified and used as a refuge
[C19: from Irish Gaelic crannóg, from Old Irish crann tree]
1. (in ancient Ireland and Scotland) a lake dwelling, usu. built on an artificial island.
2. a small, artificial, fortified island constructed in bogs in ancient Scotland and Ireland.
[1850–55; < Irish crannóg]
A dwelling built on a natural or artificial island in a lake or bog by ancient Celtic peoples in Ireland and Scotland. Such sites, often fortified, were chosen because they were easily defended.