gĕmĭnātĭo, ōnis, f. [gemino],
a doubling : geminatio verborum habet interdum vim, leporem alias, * Cic. de Or. 3, 54, 206; so, verborum, Quint. 9, 3, 67: vocalium, id. 1, 4, 10: accusativi, id. 7, 9, 10; id. 9, 3, 29: in eadem vitii geminatione, id. 1, 5, 12; Gell. 13, 24, 4.