Appendix:Latin fifth declension

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Latin nouns of the fifth declension end in -ēs in the nominative singular, with a genitive in -ēī (after -i-) or in -ĕī (after consonant), and have an invariable stem. Aside from rēs, spēs, and fidēs, fifth-declension nouns generally end more specifically in -iēs. Some nouns show variation between fifth-declension forms in -iēs and first-declension forms in -ia.

All Latin words of the fifth declension are feminine except diēs (which was originally masculine, but came to be used in some circumstances as a feminine) and derivatives of diēs such as meridiēs.

The plural forms of most fifth declension nouns are uncommon.


Case Singular Plural
Stem in
nominative -ēs -ēs
genitive -ēī -eī -ērum
dative -ēī -eī -ēbus
accusative -em -ēs
ablative -ēbus
vocative -ēs -ēs
locative -ēbus


See also[edit]