Translation according to P. W. Joyce:
Curragh, Irish currach or corrach, a marsh, a moor. See vol. i. p. 463 [reproduced below] .
Cuirreach, or as it is written in modern Irish, currach, has two meanings, a racecourse, and a morass. In its first sense it gives name to the Curragh of Kildare, which has been used as a racecourse from the most remote ages. In the second sense, which is the more general, it enters into names in the forms Curra, Curragh, and Curry, which are very common through the four provinces. Curraghmore, great morass, is the name of nearly thirty townlands scattered over the country; Currabaha and Currabeha, the marsh of the birch-trees. There are more than thirty places, all in Munster, called Curraheen, little marsh: and this name is sometimes met with in the forms Currin and Curreen.