Toutatis
Toutatis or Teutates is a Celtic god who was worshipped in ancient Gaul and Britain. On the basis of his name's etymology, he has been widely interpreted to be a tribal protector. Etymology. Today, he is best known under the name Toutatis (pronounced in Gaulish) through the Gaulish oath/catchphrase "By Toutatis!", invented for the "Asterix" comics by René Goscinny and Albert Uderzo. The spelling Toutatis is correct and attested by about ten ancient inscriptions. Under the spelling Teutates, the god is also known from a passage in Lucan. The name "Teutates" is derived from the stem "teutā- , meaning people" or "tribe", cognate with the Germanic "*þeudō". Literary evidence. Teutates was one of three Celtic gods mentioned by the Roman poet Lucan in the 1st century AD, the other two being Esus ("lord") and Taranis ("thunderer"). According to later commentators, victims sacrificed to Teutates were killed by being plunged headfirst into a vat filled with an unspecified liquid. Of two later commentators on Lucan's text, one identifies Teutates with Mercury, the other with Mars. Epigraphic and other evidence. Toutatis was worshipped especially in Gaul and in Roman Britain. Inscriptions to him have been recovered in the United  Kingdom, for example that at Cumberland Quarries (RIB 1017), dedicated to Jupiter Optimus Maximus and Mars Toutatis. Two dedications have also been found in Noricum and Rome. Gallo-Roman interpretation. As noted above, among a pair of later scholiasts on Lucan's work, one identifies Teutates with Mercury and Esus with Mars. At times the Gaulish “Mercury" may have the characteristic of a warrior, while the Gaulish “Mars" may act as a god of protection or healing. Paul-Marie Duval argues that each tribe had its own "toutatis"; he further considers the Gaulish Mars the product of syncretism with the  Celtic "toutates", noting the great number of indigenous epithets under which Mars was worshipped. TOT finger rings. A large number of Romano-British finger rings inscribed with the name "TOT", thought to refer to Toutatis, have been found in eastern Britain, the vast majority in Lincolnshire, but some in Bedfordshire, Nottinghamshire and Leicestershire. The distribution of these rings closely matches the territory of the Corieltauvi tribe. In 2005 a silver ring inscribed "DEO TOTA" ("to the god Toutatis") and "[VTERE] FELIX" ([use this ring] happily") was discovered at Hockliffe, Bedfordshire. This inscription confirms that the "TOT" inscription does indeed refer  to the god Toutatis. In 2012 a silver ring inscribed "TOT" was found in the area where the Hallaton Treasure had been discovered twelve years earlier. Adam Daubney, an expert on this type of ring, suggests that Hallaton may have been a site of worship of the god Toutatis.