Genitive Case

Do you remember our Latin noun case chart?

Let’s now learn our next case—the Genitive case! The Genitive case tells you which noun shows possession of an object in a Latin sentence. You may already know that the noun which shows possession in an English sentence is the noun that is translated with “of” in front of it or has an apostrophe “s” attached to it. Do you recognize which word is possessing something in these sentences?

Image of a sailor in a boat, sailing in the sea

Sailor and Boat

English Sentence: The boat of the sailor sails in the sea.

Possessor: of the sailor

Possession Explanation: Who possesses the boat?
Answer: The sailor

Cartoon image of a man sitting on a bench with memory bubbles featuring his life events

Memory of the man

English Sentence: The memory of the man is great.

Possessor: of the man

Possession Explanation: Who possesses the memory?
Answer: The man

Identifying the Latin Genitive Case

Did you recall that you already know the importance of the Genitive case? For a Latin noun, it is the most important case because it tells you which declension a noun is in. Let’s review a Latin noun glossary entry:

Latin Glossary Entry

The second word in a Latin glossary entry provides the Genitive, singular form of the noun.

Auxilii is the Genitive, singular form of this noun.

The Genitive case has its own set of Latin endings for 1st Declension and 2nd Declension nouns in the singular and plural forms. Review the 1st Declension and 2nd Declension noun endings charts—the Genitive case endings are highlighted.

1st Declension Noun Endings

Listen to the pronunciation of the noun endings.

Case Singular Plural
Nominative -a -ae
Genitive -ae -arum
Dative -ae -is
Accusative -am -as
Ablative -a -is

2nd Declension Masculine Noun Endings

Listen to the pronunciation of the noun endings.

Case Singular Plural
Nominative ---- -i
Genitive -i -orum
Dative -o -is
Accusative -um -os
Ablative -o -is

2nd Declension Neuter Noun Endings

Listen to the pronunciation of the noun endings.

Case Singular Plural
Nominative -um -a
Genitive -i -orum
Dative -o -is
Accusative -um -a
Ablative -o -is

How do I translate the Genitive case?

1st Declension & 2nd Declension Genitive Forms:

Genitive Case in Sentences

Now, let’s create sentences using the Genitive case and our vocabulary so that I, Pluto, finally get to show my brothers that I too can possess a noun case form! In a Latin sentence, the Genitive case will follow immediately after the noun it possesses. Watch out–you can have an endless amount of Genitives one after another in a sentence (the second sentence provides an example of this).

Latin Sentence Genitive Case English Translation
Puer consilium magistri amat. magistri The boy loves the plan of the teacher.
Verba poetae oppidi feminas et filias movent. poetae; oppidi The words of the poet of the town move the women and daughters.
Magna monstra navigia nautarum in aqua iaciunt. nautarum The large monsters hurl the ships of the sailors in the sea.

Temptemus! (Let's Try!)

For these Latin words, can you form the Genitive case, singular and plural forms, with their English translations? Select the arrow to check your answers.

copia, copiae, f. supply; troops

singular: copiae = of the supply; plural: copiarum = of the troops

exemplum, exempli, n. example

singular: exempli = of the example; plural: exemplorum = of the examples

socius, socii, m. ally

singular: socii = of the ally; plural: sociorum = of the allies

verbum, verbi, n. word

singular: verbi = of the word; plural: verborum = of the words