Feminine nouns are where the Romanian gen-dat trips people up, and there is one insight that fixes almost all of the confusion: the feminine genitive-dative singular is formed from the PLURAL stem, not the singular. fată ("girl") has gen-dat fetei — and that fet- comes straight from the plural fete, not from the singular fat-. Once you know the plural, the gen-dat falls out automatically. If you don't know the plural, you literally cannot form the gen-dat correctly. This ordering dependency is rarely stated plainly, and it is the whole game.
The plural-stem rule in action
Watch how the gen-dat tracks the plural, vowel changes and all. Romanian feminine plurals often involve a stem vowel shift (a→e, oa→o), and the gen-dat inherits exactly that shifted stem.
| Singular (nom.) | Plural | Gen-Dat singular | Meaning of gen-dat |
|---|---|---|---|
| fată | fete | fetei | of / to the girl |
| casă | case | casei | of / to the house |
| carte | cărți | cărții | of / to the book |
| floare | flori | florii | of / to the flower |
| masă | mese | mesei | of / to the table |
| școală | școli | școlii | of / to the school |
Notice fată → fete → fetei (the a becomes e), casă → case → casei, floare → flori → florii (the oa collapses to o), and școală → școli → școlii. The gen-dat never reaches back to the singular vowel — it always rides the plural.
Camera fetei e la etajul doi.
The girl's room is on the second floor. (fată → fete → fetei)
Acoperișul casei trebuie reparat.
The roof of the house needs fixing. (casă → case → casei)
I-am dat florii puțină apă.
I gave the flower a little water. (floare → flori → florii — dative)
Why -ei versus -ii?
The choice between -ei and -ii is not arbitrary — it falls straight out of the plural ending:
- Plural ends in -e → gen-dat -ei: case → casei, mese → mesei, fete → fetei.
- Plural ends in -i → gen-dat -ii: cărți → cărții, flori → florii, școli → școlii.
This is why "know the plural first" is the operative instruction. The whole spelling of the gen-dat — stem vowel, -ei vs. -ii, everything — is predictable from the plural and unpredictable from the singular.
Titlul cărții mi-a atras atenția imediat.
The book's title caught my attention immediately. (carte → cărți → cărții)
Directorul școlii a ținut un discurs scurt.
The school principal gave a short speech. (școală → școli → școlii)
Nouns in -e and the deceptive ones
Feminine nouns ending in -e (carte, floare, vale, noapte) all take -ii if their plural is in -i, which most are: noapte → nopți → nopții, vale → văi → văii. The vowel changes (oa→o in noapte→nopți, a→ă in vale→văi) are the same ones you see in the plural.
Liniștea nopții era întreruptă doar de greieri.
The silence of the night was broken only by crickets. (noapte → nopți → nopții)
Pe fundul văii curgea un pârâu.
A stream ran along the bottom of the valley. (vale → văi → văii)
The deceptive ones are nouns whose singular and plural look similar but whose gen-dat still uses the plural stem. Always derive from the plural, never guess from the singular shape.
The indefinite gen-dat: unei
Everything above used the definite gen-dat (fetei = "of/to the girl"). When the noun is indefinite ("of/to a girl"), the indefinite article o shifts to its own gen-dat form unei, and the noun appears in the bare plural-derived stem: unei fete, unei case, unei cărți. The same plural-stem logic governs the noun; only the article in front changes.
I-am dat unei fete locul meu în autobuz.
I gave my seat on the bus to a girl. (indefinite dative)
Coperta unei cărți vechi era ruptă.
The cover of an old book was torn. (indefinite genitive)
Note that the indefinite gen-dat noun looks identical to the plural (unei fete uses the same fete as the plural "girls") — context and the singular article unei keep them apart. This is another reminder that the plural stem is the foundation of the entire feminine gen-dat system.
Proper feminine names: the same logic, slightly tamed
Women's names that inflect follow the same -ei pattern, treating the name as if it had a regular feminine paradigm: Maria → Mariei, Ana → Anei, Ioana → Ioanei, Elena → Elenei. Names that resist inflection (foreign names, some short forms) fall back to lui instead: cartea lui Carmen, telefonul lui Kim.
I-am promis Anei că vin la nunta ei.
I promised Ana I'd come to her wedding. (dative)
Părinții Ioanei locuiesc la Brașov.
Ioana's parents live in Brașov. (genitive)
Common Mistakes
❌ casa fatei
Incorrect — built on the singular stem 'fat-'; the gen-dat uses the plural stem 'fet-': fetei.
✅ casa fetei
the girl's house
❌ titlul cartei
Incorrect — carte's plural is cărți, so the gen-dat is cărții, not *cartei.
✅ titlul cărții
the book's title
❌ parfumul floarei
Incorrect — the gen-dat rides the plural flori, giving florii, not *floarei.
✅ parfumul florii
the flower's scent
❌ Îi dau Maria o carte.
Incorrect — the name must take the gen-dat form: Mariei (and double with îi).
✅ Îi dau Mariei o carte.
I'm giving Maria a book.
❌ directorul școalei
Incorrect — școală → plural școli → gen-dat școlii; the singular vowel 'oa' does not survive.
✅ directorul școlii
the school's principal
Key Takeaways
- The feminine gen-dat singular is built on the PLURAL stem, not the singular: fată → fete → fetei.
- -ei when the plural ends in -e; -ii when the plural ends in -i.
- Always work the chain singular → plural → gen-dat; never derive the gen-dat from the singular.
- Women's names inflect like feminine nouns (Mariei, Anei); non-inflecting names take lui.
- The same form serves both genitive and dative — see the syncretism page.
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Start learning Romanian→Related Topics
- The Genitive (possession, 'of')B1 — How Romanian expresses possession and the 'of'-relation by inflecting the possessor — masculine -lui, feminine -ei/-ii — with no preposition, plus proper names with lui and the genitival article al/a/ai/ale.
- The Dative (indirect object, 'to')B1 — The dative marks the recipient or beneficiary of an action ('to/for someone') using the same form as the genitive — with obligatory clitic doubling and a set of verbs whose government you learn one by one.
- Genitive-Dative SyncretismB1 — Why Romanian's genitive and dative are a single form — fetei means both 'the girl's' and 'to the girl' — and how syntax, not morphology, tells you which case you're looking at.
- Feminine Plurals (-e, -i)A2 — Feminine plurals are Romanian's trickiest: the ending splits between -e and -i, and a root-vowel shift (a→e in masă→mese, oa→o in poartă→porți, a→ă in carte→cărți) usually fires at the same time. This same plural stem is what the feminine genitive-dative singular is built on.
- The Definite Article: Feminine (-a, -ua)A1 — How the enclitic definite article attaches to feminine singular nouns — -ă nouns swap to -a (casă → casa), -e nouns add -a (floare → floarea), and stressed-vowel nouns take -ua (cafea → cafeaua) — and why 'a house' and 'the house' differ by only one vowel.
- Genitive-Dative in the PluralB2 — How the plural genitive-dative works in Romanian — the single, gender-blind ending -lor that turns copiii into copiilor, fetele into fetelor, and trenurile into trenurilor, plus the indefinite plural with unor.