Ernmas is a maternal figure linking several powerful female deities. She represents the generative source of martial and prophetic feminine power. Poets invoke Ernmas to honor the matriarchal roots of sovereignty, battle magic, and the interconnectedness of fate, war, and fertility in Celtic cosmology.

Ernmas is a mother goddess and mother of several divine daughters, including Badb, Macha, and the Morrígan (in some sources). She appears in the Lebor Gabála as part of the Tuatha Dé Danann lineage. Students should recognize Ernmas as the matrilineal source of war and fate goddesses—showing how female divinity is organized through genealogy. Though inactive in tales, her name anchors key mythic relationships. Poets invoke Ernmas to honor the generative power behind more active goddesses or to explore matriarchal foundations.