Lesson 5: First Declension

LESSON 5 · Unit II — The Noun System · ~45 minutes + drilling

By the End of This Lesson

Decline 1st-declension feminine nouns in all four cases (nom, gen, dat, acc)
Recognize all three 1st-declension subpatterns (-α pure, -α/η alternating, -η pure)
Use the full feminine article — all eight forms
Translate sentences with feminine subjects, objects, and possessives
Memorize the 24 vocabulary words for this lesson

Adding Two New Cases

So far you've used two cases: nominative (subject) and accusative (direct object). This lesson adds the other two main cases:

Case	Primary function	English equivalent
Genitive	Possession; source; description	"of X" / "X's"
Dative	Indirect object; means; location; time	"to X" / "for X" / "with X" / "in X"

So ὁ λόγος τοῦ θεοῦ means "the word of God" — τοῦ θεοῦ is the genitive form ("of God"). And λέγει τῷ ἀνθρώπῳ means "he speaks to the man" — τῷ ἀνθρώπῳ is the dative form ("to the man").

The dative is the broadest of all the cases. Beyond indirect objects, it can express means ("by/with"), location ("in/at"), time ("in/on/at a particular time"), and several other ideas. Don't worry about mastering every nuance now — just learn it as the "to/for X" case at first.

First Declension — Three Subpatterns

First declension is dominated by feminine nouns. There are three variations, distinguished by what the stem ends in. Once you know the pattern, you'll see which subpattern a noun follows just from its nominative form.

Subpattern 1: Pure α — καρδία ('heart')

Used when the stem ends in ε, ι, or ρ (e.g., ἡμέρα, οἰκία)

	Singular	Plural
Nominative	καρδία	καρδίαι
Genitive	καρδίας	καρδιῶν
Dative	καρδίᾳ	καρδίαις
Accusative	καρδίαν	καρδίας

Subpattern 2: Alternating α/η — δόξα ('glory')

Singular alternates between α and η. Used when stem ends in σ, ζ, or ξ

	Singular	Plural
Nominative	δόξα	δόξαι
Genitive	δόξης	δοξῶν
Dative	δόξῃ	δόξαις
Accusative	δόξαν	δόξας

Subpattern 3: Pure η — γραφή ('writing, scripture')

Used when stem ends in any other consonant

	Singular	Plural
Nominative	γραφή	γραφαί
Genitive	γραφῆς	γραφῶν
Dative	γραφῇ	γραφαῖς
Accusative	γραφήν	γραφάς

The pattern across all three Notice that the plural endings are identical across all three subpatterns: -αι, -ων, -αις, -ας. The differences are only in the singular. The 'right' subpattern is determined by what the stem ends in:

Stem ends in ε, ι, ρ → pure α (καρδία, ἡμέρα, οἰκία, ἀλήθεια)
Stem ends in σ, ζ, ξ, λλ → α/η alternation (δόξα, γλῶσσα, θάλασσα)
Anything else → pure η (γραφή, ἀγάπη, εἰρήνη, ζωή)

You don't need to memorize the rule — once you know the nominative form, the rest of the singular follows the visible vowel. ζωή follows the η pattern because its nominative is η; καρδία follows the α pattern because its nominative is α. Just learn nouns in their nominative form and let the pattern fall out.

The Feminine Article

Now you can complete the article paradigm. Here are all eight feminine forms, plus the masculine and neuter for context.

The Article — Full Paradigm

	Masculine		Feminine		Neuter
	sg	pl	sg	pl	sg	pl
Nom	ὁ	οἱ	ἡ	αἱ	τό	τά
Gen	τοῦ	τῶν	τῆς	τῶν	τοῦ	τῶν
Dat	τῷ	τοῖς	τῇ	ταῖς	τῷ	τοῖς
Acc	τόν	τούς	τήν	τάς	τό	τά

⚠ Don't confuse ἡ (feminine nominative singular) and ἤ (the conjunction "or, than") — both are written 'ē' but they're different words. The article has rough breathing; the conjunction has smooth breathing and an accent. Look at the breathing mark.

Also: οἱ (masc nom pl) and αἱ (fem nom pl). Both have rough breathing, both end in iota — distinguished by the first letter only. Both pronounced 'hoi'/'hai'.

Sentences in Three Genders

Now you can read genuine NT phrases. The article tells you the gender at a glance.

ἡ ἀγάπη τοῦ θεοῦ

— hē agapē tou theou

"the love of God" — feminine nom ἡ ἀγάπη, masculine genitive τοῦ θεοῦ.

ἡ βασιλεία τῶν οὐρανῶν

— hē basileia tōn ouranōn

"the kingdom of heaven" (Matthew's signature phrase) — feminine nom + masculine genitive plural ('of the heavens').

ὁ Ἰησοῦς λέγει τῇ γυναικί.

— ho Iēsous legei tē gynaiki.

"Jesus speaks to the woman." τῇ γυναικί is dative ('to the woman') — γυναικί is actually 3rd-declension (Lesson 7), but the article τῇ tells you the gender and case immediately.

ἡ ἁμαρτία τοῦ κόσμου

— hē hamartia tou kosmou

"the sin of the world" (echoes John 1:29). Feminine nom + masculine gen.

οἱ ἀπόστολοι ἀκούουσι τὴν φωνὴν τοῦ κυρίου.

— hoi apostoloi akouousi tēn phōnēn tou kyriou.

"The apostles hear the voice of the Lord." τὴν φωνήν is feminine accusative singular (direct object). τοῦ κυρίου is masculine genitive ('of the Lord').

Translation Exercises

Translate from Greek to English

ἡ ζωὴ τοῦ ἀνθρώπου.
οἱ ἄνθρωποι βλέπουσι τὴν δόξαν τοῦ θεοῦ.
ὁ θεὸς ἀκούει τῆς προσευχῆς. [hint: ἀκούω often takes its object in the genitive]
ὁ ἀπόστολος γράφει τὰς ἐπαγγελίας τοῦ κυρίου.
ἡ εἰρήνη τοῦ Χριστοῦ ἐν ταῖς καρδίαις.

Answers 1. The life of the man.
2. The men see the glory of God.
3. God hears the prayer. (Specifically of-the-prayer: ἀκούω with genitive object is normal Greek idiom — though in NT Greek it freely takes accusative too.)
4. The apostle writes the promises of the Lord.
5. The peace of Christ in the hearts. (ἐν is a preposition taking dative — Lesson 9.)

Watch — Bill Mounce companion lecture

BBG Ch 7

BBG Ch 7 Genitive and Dative Open on YouTube ↗

Mounce introduces the genitive and dative cases — the same cases this lesson uses with first-declension feminines.

Practice — drill the concepts

Eight drill sets for Lesson 5 — the gen/dat semantics, recognizing the three feminine subpatterns, fully declining each (καρδία, δόξα, γραφή), the full 24-form article, genitive functions, and translation. Missed items cycle until mastered.

Vocabulary — Lesson 5 24 first-declension feminine nouns

All 24 of these words are now in the Vocabulary Trainer under "Lesson 5." Drill them daily.

Greek	Translit.	Meaning	Pattern
ἡ ἀγάπη	agapē	love	η
ἡ ἁμαρτία	hamartia	sin	α
ἡ ἀρχή	archē	beginning, ruler	η
ἡ βασιλεία	basileia	kingdom, reign	α
ἡ γῆ	gē	earth, land	η (contracted)
ἡ γραφή	graphē	writing, scripture	η
ἡ δόξα	doxa	glory, honor	α/η
ἡ εἰρήνη	eirēnē	peace	η
ἡ ἐκκλησία	ekklēsia	church, assembly	α
ἡ ἐντολή	entolē	commandment	η
ἡ ἐξουσία	exousia	authority, power	α
ἡ ἐπαγγελία	epangelia	promise	α
ἡ ζωή	zōē	life	η
ἡ ἡμέρα	hēmera	day	α
ἡ θάλασσα	thalassa	sea, lake	α/η
ἡ καρδία	kardia	heart, mind, will	α
ἡ οἰκία	oikia	house, household	α
ἡ παραβολή	parabolē	parable	η
ἡ προσευχή	proseuchē	prayer	η
ἡ φωνή	phōnē	voice, sound	η
ἡ χαρά	chara	joy	α
ἡ ψυχή	psychē	soul, life, self	η
ἡ ὥρα	hōra	hour, time	α