674. Other case forms of #is# are found in inscriptions, as follows:

N. EIS, 124 B.C. G. EIVS, EIIVS, EIIVS or EIIVS (23). D. EIEI, 123 B.C.;

EEI, IEI; EI, 123 B.C., and common in all periods. Plural: N. EEIS, EIS,

IEIS, till about 50 B.C.; EEI, EI, IEI. D. and Ab. EEIS, EIEIS, IEIS,

IS; after the republic, IIS, IIS.

675. A rare and old pronoun equivalent to #is# is #sum#, #sam#,

accusative singular, #sōs#, accusative plural, and #sīs#, dative plural.