Corpus of Electronic Texts Edition
The Expulsion of the Dessi (Author: Unknown)
paragraph 20
Forthwith the druids repair northward to Cashel to the Dessi and take them with them in battle-order early on the next morning. They light a fire of rowan there and send its smoke eastward into Ossory. Thereupon the men of Ossory come to Inneoin, and it was proclaimed by Dil that no one of the Dessi should be slain or wounded there. But the druids of the Dessi formed an old serf, Docheth by name, into the shape of a red (hornless) cow, promising freedom to his descendants for ever. Then the cow went to encounter the men of Ossory and flings herself upon them, and ... 2 ... and is killed at the ford westward of Inneoin whence the Ford of the Red Cow is so called. And then they saw it was the body of a man that had been slain.