septem-gĕmĭnus — Lewis & Short
septem-gĕmĭnus, a, um, adj.,
I sevenfold (poet.):
Nilus (as having seven mouths),Cat. 11, 7; Verg. A. 6, 800 (cf. the preced. art. and septemplex):
Roma (the city of seven hills),Stat. S. 1, 2, 191:
septemgemino Roma jugo,id. ib. 4, 1, 6.