E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A large stone resting on two or more others, like a table. (Welsh, crom, bent; llech, a flat stone.)
Weyland Smiths cave (Berkshire), Trevethy stone (Cornwall), Kits Coty House (Kent). Irby and Mangles saw twenty-seven structures just like these on the banks of the Jordan; at Plas Newydd (Anglesey) are two cromlechs; in Cornwall they are numerous; so are they in Wales; some few are found in Ireland, as the killing-stone in Louth. In Brittany, Denmark, Germany, and some other parts of Europe, cromlechs are to be found.