Airmed was the daughter of Dian Cécht and the sister of Miach. After her brother's murder by their jealous father, Airmed wept upon his grave; and from her tears, or from the body itself, three hundred and sixty-five herbs sprang up, each a healing herb, each marking a different joint or organ of the body that it would cure. Airmed gathered them all carefully, arranging them upon her green cloak according to their proper places — the herb for the eye in one position, the herb for the heart in another, the herb for the bone in a third — so that all the medical knowledge of the world might be preserved.
Then Dian Cécht, still in his jealousy, came and overturned the cloak. The herbs scattered, and their proper order was lost. So no man since has known the full medicine of the body; only those few herbs whose virtues Airmed had committed to memory before the cloak was upset survive in human knowledge. The rest are still upon the earth, but their meanings are forgotten, and we look at fields of healing-plants without knowing what they could do.
Airmed afterward kept her place among the Tuatha as one of the lesser physicians, working alongside her father (with whom, the saga does not say, she was reconciled or estranged). She presided over the Well of Slaine in some accounts, chanting the healing-spells over the dipped warriors. She is an unusual figure in the Celtic tradition: a goddess whose myth is one of an attempted preservation that failed, and who carries forever the memory of what was lost.



