Last modified on 16 December 2014, at 23:19

Appendix:Latin second declension

DescriptionEdit

Latin words of the second declension are generally of masculine gender (ending in -us) or neuter gender (ending in -um), and have a genitive in .

Latin words borrowed from Ancient Greek’s second declension are inflected with a varying mixture of Greek and Latin endings.

ExamplesEdit

Case -us, -ī (m) stem in
-r/-er (m)
-um, -ī (n)
Singular
nominative -us -um
genitive
dative
accusative -um
ablative
vocative -e / -ī * -um
locative
Case Plural
nominative -a
genitive -ōrum
dative -īs
accusative -ōs -a
ablative -īs
vocative -a
locative -īs

* By words ending with ius, where -ius becomes . E.g. fīlius becomes fīlī in vocative singular.

Exemples:

N.B.

  • The singular vocative of second declension -us nouns is the only place in pure Latin words in which the vocative ever differs from the nominative forms: -e instead of -us. The plural vocative is the same as the nominative. As seen in filius, filiī, the vocative singular changes the -ius into an -ī, instead of changing the -us into an -e.
  • deus, -ī m has several irregular plural forms.

Greek declensionEdit

Case -os / -us m/f -on / -um n
Singular
nominative -os / -us -on / -um
genitive
dative
accusative -on / -um
ablative
vocative -e -on / -um
locative
Case Plural
nominative -a
genitive -ōrum
dative -īs
accusative -ōs -a
ablative -īs
vocative -a
locative -īs

Exemples:

N.B.

  • Genitive, dative, ablative, locative and plural are the same as in Latin words; for -os/-us it is like Latin -us and words with stem in -r/-er, and for -on/-um it is like Latin -um.

See alsoEdit