Translation according to P. W. Joyce:
Cahercon in Galway; called by the natives with great distinctness, Caihair-dha-chon, the caher of the two hounds : there was a legend, which, however, I have not heard. For other places named from two hounds, see vol. i. p. 258 [reproduced below].
Several places get their names from two hounds; such as Moyacomb in Wicklow (see p. 52); Cahiracon, two townlands in Clare, which are called to this in Irish Cathair-dhá-chon, the carher or stone fortree of the two hounds; and Lisdachon in Westmeath. In the parish of Devenish, Fermanagh, there are two conterminous townlands called Big Dog and Little Dog; these singular appellations derive their origin from the modern division into two unequal parts, of an ancient tract which is called in the annals, Sliabh-dá-chon, the mountain of the two hounds. We find also Cloondacon in Mayo, the meadow of the two hounds.