), an island in the Ligeris (Loire
), within the territory of the Aedui.
In the seventh year of the Gallic War (B.C. 52) Caesar summoned the senate of the Aedui to Decetia. (B. G.
The name occurs in the Itins.
In the Antonine Itin. it is placed on the road from Augustodunum (Autun
) to Paris, and 16, or, according to another reading, 15, Gallic leagues from Nevirnum (Nevers
on the Loire).
In one place in the Antonine Itin. the name is written Deccidae; and in the Table it is Degena, a corrupted form.
The modern site is Décise,
in the department of Nièvre.