1. Meaning of Name: Olmsted gives us “God of Hot Springs”, but has trouble justifying it. Green is not so optimistic, merely wanting to note that it, “probably derives from the name of Grand in the Vosges”.1
2. Pronunciation: GRAN-us, with the “a” like the “u” in “Gus”, and the “u” like the “u” in “put”.
3. Other Names and Epithets: Very many. Olmsted gives us: Amarcolitanos, Anextlomaros, Atepomaros, Belinus, Belisamaros, Bormo/Borvo, Cermillos, Glanis, Matuicis, Mogounis/Mogonts, Nerios, Siannos, Toutorix, Veletudo, Vindonnus, Vindoridios, Vindovroicos, Virotutis, and Vroicos. He may also be related to Olmstead’s reconstructed proto-Celtic divinity Nectonios.2
4. Interpretatio Romana: Apollo.3
5. Irish Equivalent: None. The Dian Cecht performs a similar function, but is a radically different deity.
6. Indo-European Equivalent: If the association with Olmsted’s Nectonios can be believed, then he equates to Xákwōm Népōt, the “Nephew of the Waters”, and the “God of Fiery Water”.4
7. Realm: Ueronados/Upper World Deity, but, in role of God of Hot Springs, has Andernados aspects.
8. Icongraphy: Grannus was worshipped in typical Gallo-Roman healing shrines, often associated with healing springs. He is depicted with horses, a sun-chariot, and on one occasion, the “head of a radiate sun-deity”.5
9. Significance: Reasoning from the above, we can see that Grannus is a solar deity, possibly God of the Sun, certainly God of Light. Even more, he is a healing deity, called on to cure injury and illness. He was also called on for health and protection. As a deity at once solar and watery, hot springs are especially sacred to him.

  1. Olmsted, Gods of the Celts and Indo-Europeans, p. 389; Green, Dictionary, p. 32
  2. Olmsted, Gods of the Celts and Indo-Europeans, pp. 385-396
  3. Green, Dictionary, p. 32; Olmsted, Gods of the Celts and Indo-Europeans, p. 389; Kondratiev, Basic Celtic Deity Types
  4. Serith, Deep Ancestors, pp. 57-59; Olmsted, Gods of the Celts and Indo-Europeans, p. 384
  5. Green, Dictionary, pp.

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