This is a re-do in the "deity deep dive" format of my original Morrigan post!
The Morrigan is the ancient Irish Triple, or tripartite, of war and death, but she is also goddess of sovereignty, the land, and prophecy.
The name Morrigan, or Morrigu, is the anglicized version of the Gaelic name Mór-Ríoghain, which means "Great Queen" in modern Irish.
The old name has been linked to the proto-indo-european word Mór (terror) and Ríoghain could relate to the Latin word Regina (queen). (Wiktionary)
It’s debated whether she is one deity with three aspects or if these three aspects are sisters that create a triple goddess.
If they are sisters, their names are likely Macha, Nemain, and The Morrigan, their collective title being The Morrigu or The Morrigna. (The spelling of these will differ throughout your research if you choose to do your own after this post)
Their names could also be Macha, Nemain, and Badb, though the name “Badb” may have been a title for spirits/gods who wrought havoc on the battlefields and incited terror in the opposing side. (See “The Ancient Irish Goddess of War” in references for more info).
Other names involved with these sisters are Anand and Fea.
It’s not unlikely that The Morrigan’s identity would change between the many different groups in Ireland throughout time.
Her mother is Ernmas, father is unknown.
Siblings have included Ériu, Banba, and Fódla, who make up the triple goddess of spirit and sovereignty of Ireland.
As well as Gnim, Coscar, Fiacha, and Ollom, as her brothers.
The Dagda, with whom her relationship is of great importance for the Irish holiday Samhain.
In some iterations of her lore the Morrigan falls for Irish Hero Cú Chulainn but her feelings are not returned.
Mechi, who has three hearts that each contain a serpent.
Due to the many myths and legends surrounding The Morrigan and she is also associated with the Fae and the Banshee—a creature that generally takes on the form of an old woman who wails in mourning to announce the coming death of someone in the family.
The Morrigan is most notoriously a shape shifter and deity of magic.
In modern day paganism and witchcraft, some choose to worship The Morrigan as one deity with the sisters as aspects, others choose to worship her as a triple goddess consisting of three sisters. Neither of these can be said to be entirely right or wrong and vary from person to person, even from an academic point of view.
Though there are similar beings throughout Celtic mythology, The Morrigan is unique to Irish mythology.
Stories that prominently feature the Morrígan include Táin Bó Cúailgne (The Cattle Raid of Cooley), Cath Maige Tuired (The First and Second Battles of Moytura), and Lebor Gabála Érenn (The Book of the Taking of Ireland). (Mythopedia)
Fulacht na Mór Ríoghna (Cooking Pit of the Morrígan) in County Tipperary, and two hills in County Meath known as Da Cích na Morrígna (Two Breasts of the Morrígan) are both locations in Ireland linked to The Morrigan.
Disclaimer - Many of these are not traditional or historic correspondences nor do they need to be. However, any correspondence that can be considered traditional will be marked with a (T).
Deep green, black and red stones/crystals
Blood (be careful with this please!!)
The stones and herbs listed above
Imagery of the animals or symbols listed above
Food that you’ve made or a portion of your meal
Art made of her or inspired by her
Candles and/or wax melts; incense
Note: If you’d like your offering to be a bit more traditional, try burying it or sending it down a stream, but only if it is safe for the environment if you do so!
Exercise/Work out (especially if it's challenging!)
Read/write poetry for her
Take up a competitive sport or activity
Keep in mind that these are only some ideas for offerings and correspondences! Items and activities that connect you to her in a more personal way are just as good, and often better, than those you find on the internet. As with any relationship, feel it out, ask questions, and be attentive and receptive!
References and Further Reading
The Morrigan - World History Encyclopedia
The Ancient Irish Goddess of War by WM Hennessey (via Sacred-Texts)
The Morrigan - Druidry.org
The Book of the Great Queen by Morpheus Ravenna
The Morrigan - Mythopedia (Mythopedia also has a bunch of references and further reading of their own that I suggest you look at if you’d like to do your own research!)