Lewis Short
Mĕdĭon | Mĕdĭōnĭus, a, um | Mĕ-dĭōnii, ōrum (noun F.m) :
* A city of Acarnania, Liv. 36, 11, 10; 36, 12, 1; 44, 23, 3.— Hence, , , adj., of or belonging to Medion.—Plur. subst.: , , , the inhabitants of Medion, Liv. 36, 12, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary