Centum -gĕmĭnus, a, um, adj.,
a hundreafoid , poet. epithet of the hundredarmed Briareus, Verg. A. 6, 287 Serv.; cf. Macr. S. 5, 14, 8; and of the hundred-gated Thebes, Val. Fl. 6, 118.
centumgeminus adj. centum + geminus, of multiple form : Briareus, i. e. with a hundred...
An Elementary Latin Dictionary