The exact meaning of the name Sulis has been a matter of debate, but an emerging consensus among linguists regards the name as cognate with Old Irishsúil. A common Proto-Celtic root *sūli-, related to the various Indo-European words for "sun" has also been proposed, although the Brittonic terms for "sun" feature a diphthong that is absent from Sulis and they are not attested as a feminine form or with the -i- inflection. Pierre-Yves Lambert argues for a Proto-Celtic form *su-wli-, composed of the prefix su- attached to the Celtic verbal theme *wel-. The medieval Welshpersonal nameSulgen and the Breton personal name Sul, borne by a local saint, are also related.
Cult at Bath
Sulis was the local goddess of the thermal springs that still feed the spa baths at Bath, which the Romans called Aquae Sulis. Her name primarily appears on inscriptions discovered at Bath, with only a single instance outside of Britain at Alzey, Germany. This is not surprising, as Celtic deities often preserved their archaic localisation. They remained to the end associated with a specific place, often a cleft in the earth, a spring, pool or well. The Greeks referred to the similarly local pre-Hellenic deities in the local epithets that they assigned, associated with the cult of their Olympian pantheon at certain places. The Romans tended to lose sight of these specific locations, except in a few Etruscan cult inheritances and ideas like the genius loci, the guardian spirit of a place. The gilt bronze cult statue of Sulis Minerva "appears to have been deliberately damaged" sometime in later Antiquity, perhaps by barbarian raiders, Christian zealots, or some other forces.
Inscribed tablets
About 130 curse tablets, mostly addressed to Sulis, have been found in the sacred spring at the Roman baths in Bath. Typically, the text on the tablets offered to Sulis relates to theft; for example, of small amounts of money or clothing from the bath-house. It is evident, from the localized style of Latin used, that a high proportion of the tablets came from the native population. In formulaic, often legalistic, language, the tablets appeal to the goddess Sulis to punish the known or unknown perpetrators of the crime until reparations are made. Sulis is typically requested to impair the physical and mental well-being of the perpetrator, by the denial of sleep, by causing normal bodily functions to cease or even by death. These afflictions are to cease only when the property is returned to the owner or disposed of as the owner wishes, often by its being dedicated to the goddess. One message found on a tablet in the Temple at Bath reads: "Docimedis has lost two gloves and asks that the thief responsible should lose their minds and eyes in the goddess' temple." The tablets were often written in code, by means of letters or words being written backwards; word order may be reversed and lines may be written in alternating directions, from left to right and then right to left. While most texts from Roman Britain are in Latin, two scripts found here, written on pewter sheets, are in an unknown language which may be Brythonic. They are the only examples of writing in this language ever found.
Syncretism with Minerva
At Bath, the Roman temple is dedicated to Sulis Minerva as the primary deity of the temple spa. Through the Roman Minerva syncresis, later mythographers have inferred that Sulis was also a goddess of wisdom and decisions. Sulis was not the only goddess exhibiting syncretism with Minerva. Senua's name appears on votive plaques bearing Minerva's image while Brigantia also shares many traits associated with Minerva. The identification of multiple Celtic gods with the same Roman god is not unusual. On the other hand, Celtic goddesses tended to resist syncretism; Sulis Minerva is one of the few attested pairings of a Celtic goddess with her Roman counterpart. Dedications to “Minerva” are common in both Great Britain and continental Europe, normally without any Celtic epithet or interpretation.
Solar goddess
Based on her name's etymology, as well as several other characteristics, such as the association with sight, civic law, and epithets relating to light, Sulis has been interpreted as a solar deity, at least in pre-Roman times. Some researchers have further suggested a role as the de facto Celtic solar deity, the associated Sulevia and similar names being the goddess's attestations elsewhere.
Modern worship
Sulis has a number of modern-day worshipers among the Wiccan and pagan communities. As of 1998, some people still deposited offerings in the waters of the Roman baths.
