| **Term** | **Phonetic Pronunciation** | **Link** | Definition |
|:---------|:----------------------------|:--------------------|:-----------|:-----------|
| Gaesatae | Guh-sae-ree | **Link** | A group of Celts that offered their services as mercenaries, were known to be particularly gifted in battle, and are said to have fought naked. Also, in Diamant, a martial archetype for fighters |
| Glàm Dichenn | Glam-dyken | **Link** | The magic of curses. Also a sorcerous origin in Diamant that uses its power. |
| Imbolc | Im-bawl-k | | The first day of spring, a traditional Celtic holiday celebrating fertility. || Irgoll | Ear-gawl | **Link** | Fomóire Power of Mischief, Deception, Lies, & Temptation |
| Judoc | Jue-dock | **Link** | Tuatha Dé Danann Power of Knowledge, Fire, Blacksmithing, & Mechanical Things. |
| Lir | Lear | **Link** | Tuatha Dé Danann Power of Storms, Rage, Revenge, the Sea, & its Creatures |
| Loch | Lock | | Lake |
| Lughnasadh | Luge-nassa | | A gaelic holiday marking the beginning of the harvest. |
| Mag Ildathach | Mag IL-dahak | | As the Feywilde (Tír na nÓg) and Shadowfel (Tír nAill) are reflections of the mortal realm representing life and death respectively, Mag Ildathach, or the Dream, represents mortal dreams, daydreams, inspirations, and nightmares. It is a parallel plane, and a near place that can be reached intentionally or accidentally (with a dream crossing), or by stepping sidways. |
| Méabh | May-b | **Link** | Fomóire, Wife & Companion to Judoc, Power of Beauty, Love, Love Lost, Fertility, the Arts, Eloquence, & Diplomacy |
| Óengus | Angus | **Link** | Half Fomóire Power of Warriors, Bloodshed, and Savagery in Battle. |
| Octriallach | Oct-reah-lak | | The ancient Fomóire king, slain by Judoc in the great war of the Tuatha Dé Danann. |
| Poitín | Poo-cheen | | Irish moonshine. |
| Ríastrad | Ree-awe-strad | | Berserk, or frenzy. A state that Cú Chulainn was supposedely able to enter in times of anger or desperation.
| Samhain | Saw-whin | | Celtic Halloween, a holiday marking beginning of winter, and when the night is longest. Bonfires are lit and celebrations held to ward off evil spirits. |
| Seelie | See-lee | | Fairy folk. This can also be used to refer to the Summer Court (seelie) or the Winter Court (unseelie).
| Sí (AKA Aos Sí, or Aes Sidhe) | Shee | | The fairy folk, see also Aos Si, Aes Sidhe, or Sí. |
| Sovereign Host, The | | **Link** | A relatively new God displacing the Tuatha Dé Danann by converting followers of the Old Gods to more modern ways. The Sovereign Host has all but destroyed the worship of the Tuatha Dé Danann in population centers, but has had difficulty converting those from more rural areas. |
| Spring Court, The (AKA The Antler Crown, The Emerald Court, The Court of Desire) | | | One of four courts held in Tír na nÓg. This court is said to be fluid, accepting of change, and adaptable. |
| Stepping Sideways | | | The act of intentionally or unintentionally entering one of the near places of Tír na nÓg, Tir nAill, or Mag Ildathach. |
| Summer Court, The (AKA The Flaming Spear, The Crimson Court, The Court of Wrath) | | | One of four courts held in Tír na nÓg. This court is said to be as fiery as it would imply, quick to anger, and full of veangeance of wronged. |
| Tír na nÓg | Teer nanog | | In Diamant, this is the land of the Sí, or fairies - the Feywilde. It is said time doesn't pass the same way as the mortal realm, and is a world of vibrance and life. |
| Tír nAill | Teer naneel | | In Diamant, this is the land of the dead - Shadowfell. It is said that time doesn't pass the same way as the mortal realm, and is a land of grey, emotionless death. |
| **Term** | **Phonetic Pronunciation** | **Link** | Definition |
|:---------|:----------------------------|:--------------------|:-----------|:-----------|
| Tuatha Dé Danann | Too-a De-dannan | **Link** | Once a term to describe a specific people, the Tuatha Dé Danann intermarried with their foes the Fomóire, and the term has now come to reference the Old Gods whether or not they were originally Tuatha Dé Danann or Fomóire. |
| Tùr | Ture | | A tower. |
| Weaver, The | | **Link** | A primordial force of order and structure, and one of three Great Old Ones to figure prominently in the Tuatha Dé Danann myths of creation. |
| Winter Court, The (AKA The Onyx Court, The Court of Sorrow, The Silent Arrow) | | | One of four courts held in Tír na nÓg. This court is said to be as cold as its namesake, brutal and calculating, vicious warriors, but holds diligently to any truce. The night hunts are sometimes heard echoing throughout the mortal realm. |
| Wylde, The | | **Link** | A primordial force of unrestrained creation and chaos, and one of three Great Old Ones to figure prominently in the Tuatha Dé Danann myths of creation |
| Wyrm, The | | **Link** | A primordial force of entropy and consumption, and one of three Great Old Ones to figure prominently in the Tuatha Dé Danann myths of creation. |