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Appendix:Latin second declension

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



Citation form: mūrus, -ī m.

Case Singular Plural
nominative mūr·us mūr·ī
genitive mūr·ī mūr·ōrum
dative mūr·ō mūr·īs
accusative mūr·um mūr·ōs
ablative mūr·ō mūr·īs
vocative mūr·e mūr·ī
locative mūr·ō mūr·īs

N.B. The singular vocative of second declension -us nouns is the only place in which the vocative ever differs from the nominative forms: -e instead of -us. The plural vocative is the same as the nominative.

Masculine stem in -r

Citation form: ager, -grī m.

Case Singular Plural
nominative ager agr·ī
genitive agr·ī agr·ōrum
dative agr·ō agr·īs
accusative agr·um agr·ōs
ablative agr·ō agr·īs
vocative ager agr·ī
locative agr·ō agr·īs
Masculine stem in -er

Citation form: puer, -ī m.

Case Singular Plural
nominative puer puer·ī
genitive puer·ī puer·ōrum
dative puer·ō puer·īs
accusative puer·um puer·ōs
ablative puer·ō puer·īs
vocative puer puer·ī
locative puer·ō puer·īs


Citation form: bellum, -ī n.

Case Singular Plural
nominative bell·um bell·a
genitive bell·ī bell·ōrum
dative bell·ō bell·īs
accusative bell·um bell·a
ablative bell·ō bell·īs
vocative bell·um bell·a
locative bell·ō bell·īs

Greek declension

Citation form: atomus (-os), -ī f.

Case Singular Plural
nominative atom·os / atom·us atom·ī
genitive atom·ī atom·ōrum
dative atom·ō atom·īs
accusative atom·on / atom·um atom·ōs
ablative atom·ō atom·īs
vocative atom·e atom·ī
locative atom·ō atom·īs

Citation form: Īlium (-on), -iī n.

Case Singular Plural
nominative Īli·on / Īli·um Īli·ī
genitive Īli·ī Īli·ōrum
dative Īli·ō Īli·īs
accusative Īli·on / Īli·um Īli·ōs
ablative Īli·ō Īli·īs
vocative Īli·on / Īli·um Īli·ī
locative Īli·ō Īli·īs

See also