Lewis Short
Gergŏvĭa (noun F) :
* A town of the Arverni, in Aquitanian Gaul, perh. in the neighborhood of the modern Clermont, now Jargean, Caes. B. G. 7, 4; 34; 36; 44.
* A town of the Boii, to the east of the Liger, perh. the mod. Charlieu, Caes. B. G. 7, 9 fin.
Charlton T. Lewis, Charles Short, A Latin Dictionary