Lewis Short
Lūcus (noun M) : 1. lucus, the name of several cities in Gaul and Spain, of which the most important was
* Lucus, a city of the Vocontii, also called Lucus Augusti, now Lucim, Tac. H. 1, 66; Plin. 3, 4, 5, § 37.
Charlton T. Lewis, Charles Short, A Latin Dictionary