[Corrupt. of Irish corcach marsh, moor.] The name in Ireland of the salt marshes along the banks of the Shannon and other rivers.
1796. Morse, Amer. Geog., II. 176. The most fertile of all are the bullock pastures of Limerick, and the banks of the Shannon … called the Corcasses.
1846. M’Culloch, Acc. Brit. Empire (1854), I. 346. The famous pastures, called the corcasses or caucasses, on the banks of the Shannon and Fergus.
