Smert means "provider" or "carer" and is also found in other Gaulish names such as Ad-smerio, Smertu-litani, Smerius (Σμερο), Smertae, Smertus, and others.
A relief from Autun (ancient Augustodunum, the civitas capital of the Celtic Aedui), shows Rosmerta and Mercury seated together as a divine couple.
Rosmerta is shown by herself on a bronze statue from Fins d'Annency (Haute-Savoie), where she sits on a rock holding a purse and, unusually, also bears the wings of Mercury on her head.
Twenty-seven inscriptions to Rosmerta are listed by Jufer and Luginbühl,[6] distributed in France, Germany and Luxembourg, corresponding mainly to the Roman provinces of Gallia Belgica and Germania Superior.
A lengthier inscription from Wasserbillig in Gallia Belgica[11] associates the divine couple with the dedication of a shrine (aedes), with "hospitable" rites to be celebrated.