Lesson 3 · Review

Cases and the First Declension — vocabulary, rules, and a self-check

Read through the vocabulary and the rules, then test yourself below. Answer in your head before you click.

IVocabulary

All of these are first-declension nouns — their dictionary form ends in -a. Say each aloud as you read it.

dominalady, mistress
fīliadaughter
puellagirl
agricolafarmer
nautasailor
silvaforest, wood
fugaflight
terraearth, land
aquawater
causacause, reason
lūnamoon
fortūnafortune
iniūriawrong, injury
amat(he/she/it) loves

IIDeclension and the Three Cases

Rule 1 — Endings, not order

In Latin the subject and the object are distinguished not by word order but by the endings of the words. The ending shows a word's job, so the order can change without changing the meaning.

Domina fīliam amat = Fīliam domina amat = "The lady loves her daughter."

Rule 2 — Declension and case

Changing a noun's ending to show its use is called declension; each different ending is a case. The first declension (nouns whose nominative ends in -a) has these cases:

domina — "lady" — declined
SingularPluralUse
Nom.dominadominaesubject — Who?
Gen.dominaedominārumpossessor — Whose?
Acc.dominamdomināsdirect object — Whom?
Rule 3 — The endings

Nominative -a (sg) / -ae (pl); genitive -ae (sg) / -ārum (pl); accusative -am (sg) / -ās (pl).

silva (subject) · silvae (of the forest, or forests) · silvam (object) · silvārum (of the forests) · silvās (objects)

Rule 4 — The -ae trap

The genitive singular and the nominative plural share the same ending, -ae. The form alone is ambiguous — you rely on the rest of the sentence to decide which use is meant.

terrae = "of the land" (genitive sg) OR "lands" (nominative pl).

IIISelf-check

Pick an answer; wrong picks turn red and you may try again. Six out of six before you start the exercises.

Question 1

In Domina fīliam amat, which word is the direct object — and how can you tell?

Right. The accusative singular ending -am marks the direct object (Rule 3). Position is irrelevant; the ending does the work.

Not quite — which ending marks the object? Look at the endings, not the order.

Question 2

What is the genitive plural ending of a first-declension noun?

Right. Genitive: -ae in the singular, -ārum in the plural (Rule 3). -ās is the accusative plural.

Not quite — the genitive marks the possessor (Whose?). Which plural ending is that?

Question 3

What does Fīlia dominam amat mean?

Right. Fīlia ends in -a (nominative subject) and dominam in -am (accusative object): the daughter is doing the loving, the lady receiving it.

Not quite — which word has the -a (subject) ending and which has -am (object)?

Question 4

The form terrae could be which case(s)?

Right. The ending -ae serves both the genitive singular ("of the land") and the nominative plural ("lands") — the trap from Rule 4. Context decides.

Not quite — re-read Rule 4: which two cases share the ending -ae?

Question 5

Which ending marks the accusative plural (more than one direct object)?

Right. Accusative: -am in the singular, -ās in the plural (Rule 3). So silvās = "forests" as a direct object.

Not quite — the accusative singular is -am; what is its plural?

Question 6

Why can Latin write both Domina fīliam amat and Fīliam domina amat with the same meaning?

Right. This is the great advantage of Latin's case system (Rule 1): the endings fix who is subject and who is object, so the words may be arranged freely for emphasis.

Not quite — what is it about the words themselves that keeps the meaning fixed?

Answered correctly: 0 / 6