According to the Irish myths, Airmid was one of the enchanters whose incantation sung over the well of Sláine was able to resurrect the dead.
Airmid healed injured soldiers in the famous Second Battle of Moytura (Magh Tuiredh), the legendary site of two battles between the Tuatha Dé Danann and their enemies; the First Battle with the Fir Bolg and the Second Battle with the Fomorians, mythological enemies of the people of Ireland, often equated with the Greek Titans who were “opposing force” to the Olympians.
In the first battle, the first king of the Tuatha Dé Danann, Nuadha (known as Airgetlám (“silver hand/arm”), lost his arm. He was no longer eligible for kingship due to the Tuatha Dé tradition that their king must be physically perfect. Nuada was replaced as king by a half-Fomorian prince known for his beauty and great intellect.
In the meantime, Nuada’s lost arm was replaced by a fully functioning silver arm by the physician Dian Cecht, father of goddess Airmid . Later, Nuada’s arm was once again replaced with a new one of flesh and blood. It was masterwork of Airmid’s healing treatment and skills of her brother Miach.
Their father was not pleased with Airmid and her healing abilities, he then killed her brother Miach.