§75. Summary of i-Stems

The regular case-ending of the Accusative singular of i- stems (M. or F.) would be -im: as, sitis, sitim (cf. stella, -am; servus, -um); but in most nouns this is changed to -em (following the consonant declension).

a. The accusative in -im is found exclusively—

• In Greek nouns and in names of rivers.
• In būris, cucumis, rāvis, sitis, tussis, vīs.
• In adverbs in -tim (being accusative of nouns in -tis), as, partim; and in amussim.

b. The accusative in -im is found sometimes in febris, puppis, restis, turris, secūris, sēmentis, and rarely in many other words.