A legendary dindsenchas "lore of places" poem relates a myth connecting the presumed goddess Tailtiu with the site.
[2] However, linguistic analysis of the name reveals that Tailtiu as a place-name derives from a loan word of Brythonic origin represented by the Welsh telediw "well formed, beautiful.
According to the Book of Invasions, Tailtiu was the wife of Eochaid mac Eirc, last Fir Bolg High King of Ireland, who named his capital after her (Teltown, between Navan and Kells).
Lugh established a harvest festival and funeral games, Áenach Tailteann, in her honour, which continued to be celebrated as late as the 18th century.
Aspects of the festival survive in the celebrations of Lughnasadh, and were revived as the Teltown Games for a period in the twentieth century.