cromlech (n.)youdaoicibaDictYouDict[cromlech 词源字典]
c. 1600, from Welsh, from crom, fem. of crwm "crooked, bent, concave" + llech "(flat) stone." Applied in Wales and Cornwall to what in Brittany is a dolmen; a cromlech there is a circle of standing stones.[cromlech etymology, cromlech origin, 英语词源]