678. Other case forms of #īdem# are found in inscriptions, as follows:

N. M. EISDEM, 123 B.C., ISDEM, 59 B.C., both common till Caesar’s time;

EIDEM; Ne. EIDEM, 71 B.C. D. IDEM. Plural: N. M. EISDEM, ISDEM, EIDEM,

till Caesar’s time; IIDEM, once only. D. and Ab. ISDEM, very rarely

IISDEM.