[Many games were played between Eochaid and Mider; and, since Mider did not put forth his whole strength, the victory on all occasions rested with Eochaid. But instead of the gifts which Mider had offered, Eochaid demanded that Mider and his folk should perform for him services which should be of benefit to his realm; that he should clear away the rocks and stones from the plains of Meath, should remove the rushes which made the land barren around his favourite fort of Tethba, should cut down the forest of Breg, and finally should build a causeway across the moor or bog of Lamrach that men might pass freely across it. All these things Mider agreed to do, and Eochaid sent his steward to see how that work was done. And when it came to the time after sunset, the steward looked, and he saw that Mider and his fairy host, together with fairy oxen, were labouring at the causeway over the bog;] and thereupon much of earth and of gravel and of stones was poured into it. Now it had, before that time, always been the custom of the men of Ireland to harness their oxen with a strap over their foreheads, so that the pull might be against the foreheads of the oxen; and this custom lasted up to that very night, when it was seen that the fairy-folk had placed the yoke upon the shoulders of the oxen, so that the pull might be there; and in this way were the yokes of the oxen afterwards placed by Eochaid, and thence cometh the name by which he is known; even Eochaid Airemm, or Eochaid the Ploughman, for he was the first of all the men of Ireland to put the yokes on the necks of the oxen, and thus it became the custom for all the land of Ireland. And this is the song that the host of the fairies sang, as they laboured at the making of the road: Thrust it in hand! force it in hand! Nobles this night, as an ox-troop, stand: Hard is the task that is asked, and who From the bridging of Lamrach shall gain, or rue?