Pinkman: "Cnoc-na-Samhna = Hill of the November Day (sports) Samhain, All-Hollowtide, the feast of the dead in pagan and Christian times, signalising the close of the harvest and the initiation of the winter season, lasting till May, during which troops were quartered, the fairies were imagined as particularly active at this period, from it the half year is reckoned. (Dinneen). But here the word is applied to the first day of November, Lá Samhna, and to the festivities in connextion with it. Tuathal, King of Ireland in the first century, is credited with the institution of this feast on November Day. It was celebrated at Tlachtga, near Athboy, with games, sports and certain religious ceremonies. The celebration lasted for three days before and three days after the Festival. While these events were taking place at Tlachtga, celebrations on a smaller scale were carried on in various parts of the country, and the names of a number of places still preserve and echo of the practice. Compare

"Arch. Inventory Rath. On top of a rise (105). Rath. Towards the top of an E-facing slope (105). "

Féach Alan Mac an Bhaird

'the lucky hill'

'hill of all-hollowtide - meetings or sports here at the season'

"It contains…a small fort in the northern angle…"