رباعي
Arabic
Etymology
Relative adjective (nisba) composed of رُبَاع (rubāʿ, “four at a time”) + ـِيّ (-iyy), from the root ر ب ع (r-b-ʿ); related to the numeral أَرْبَعَة (ʾarbaʿa, “four”).
Adjective
رُبَاعِيّ • (rubāʿiyy) m, feminine رُبَاعِيَّة (rubāʿiyya), masculine plural رُبَاعِيُّون (rubāʿiyyūn), feminine plural رُبَاعِيَّات (rubāʿiyyāt)
- consisting of four, quadripartite, fourfold, quadruple
- (geometry) quadrangular
- (geometry) tetragonal
- (grammar, linguistics) consisting of four radical letters, quadriliteral
Declension
Declension of adjective رُبَاعِيّ (rubāʿiyy)
| Singular | Masculine | Feminine | ||
|---|---|---|---|---|
| basic singular triptote | singular triptote in ـَة (-a) | |||
| Indefinite | Definite | Indefinite | Definite | |
| Informal | رُبَاعِي rubāʿī |
الرُّبَاعِي ar-rubāʿī |
رُبَاعِيَّة rubāʿiyya |
الرُّبَاعِيَّة ar-rubāʿiyya |
| Nominative | رُبَاعِيٌّ rubāʿiyyun |
الرُّبَاعِيُّ ar-rubāʿiyyu |
رُبَاعِيَّةٌ rubāʿiyyatun |
الرُّبَاعِيَّةُ ar-rubāʿiyyatu |
| Accusative | رُبَاعِيًّا rubāʿiyyan |
الرُّبَاعِيَّ ar-rubāʿiyya |
رُبَاعِيَّةً rubāʿiyyatan |
الرُّبَاعِيَّةَ ar-rubāʿiyyata |
| Genitive | رُبَاعِيٍّ rubāʿiyyin |
الرُّبَاعِيِّ ar-rubāʿiyyi |
رُبَاعِيَّةٍ rubāʿiyyatin |
الرُّبَاعِيَّةِ ar-rubāʿiyyati |
| Dual | Masculine | Feminine | ||
| Indefinite | Definite | Indefinite | Definite | |
| Informal | رُبَاعِيَّيْن rubāʿiyyayn |
الرُّبَاعِيَّيْن ar-rubāʿiyyayn |
رُبَاعِيَّتَيْن rubāʿiyyatayn |
الرُّبَاعِيَّتَيْن ar-rubāʿiyyatayn |
| Nominative | رُبَاعِيَّانِ rubāʿiyyāni |
الرُّبَاعِيَّانِ ar-rubāʿiyyāni |
رُبَاعِيَّتَانِ rubāʿiyyatāni |
الرُّبَاعِيَّتَانِ ar-rubāʿiyyatāni |
| Accusative | رُبَاعِيَّيْنِ rubāʿiyyayni |
الرُّبَاعِيَّيْنِ ar-rubāʿiyyayni |
رُبَاعِيَّتَيْنِ rubāʿiyyatayni |
الرُّبَاعِيَّتَيْنِ ar-rubāʿiyyatayni |
| Genitive | رُبَاعِيَّيْنِ rubāʿiyyayni |
الرُّبَاعِيَّيْنِ ar-rubāʿiyyayni |
رُبَاعِيَّتَيْنِ rubāʿiyyatayni |
الرُّبَاعِيَّتَيْنِ ar-rubāʿiyyatayni |
| Plural | Masculine | Feminine | ||
| sound masculine plural | sound feminine plural | |||
| Indefinite | Definite | Indefinite | Definite | |
| Informal | رُبَاعِيِّين rubāʿiyyīn |
الرُّبَاعِيِّين ar-rubāʿiyyīn |
رُبَاعِيَّات rubāʿiyyāt |
الرُّبَاعِيَّات ar-rubāʿiyyāt |
| Nominative | رُبَاعِيُّونَ rubāʿiyyūna |
الرُّبَاعِيُّونَ ar-rubāʿiyyūna |
رُبَاعِيَّاتٌ rubāʿiyyātun |
الرُّبَاعِيَّاتُ ar-rubāʿiyyātu |
| Accusative | رُبَاعِيِّينَ rubāʿiyyīna |
الرُّبَاعِيِّينَ ar-rubāʿiyyīna |
رُبَاعِيَّاتٍ rubāʿiyyātin |
الرُّبَاعِيَّاتِ ar-rubāʿiyyāti |
| Genitive | رُبَاعِيِّينَ rubāʿiyyīna |
الرُّبَاعِيِّينَ ar-rubāʿiyyīna |
رُبَاعِيَّاتٍ rubāʿiyyātin |
الرُّبَاعِيَّاتِ ar-rubāʿiyyāti |
Derived terms
- رُبَاعِيّ الأَضْلَاع (rubāʿiyy al-ʾaḍlāʿ), رُبَاعِيّ الْجَوَانِب (rubāʿiyy al-jawānib, “quadrilateral”)
Noun
رُبَاعِيّ • (rubāʿiyy) m, plural رُبَاعِيُّون (rubāʿiyyūn) or رُبَاعِيَّات (rubāʿiyyāt), feminine رُبَاعِيَّة (rubāʿiyya)
Usage notes
The meaning “quatrain” uses the plural رُبَاعِيَّات (rubāʿiyyāt).
Declension
Declension of noun رُبَاعِيّ (rubāʿiyy)
| Singular | basic singular triptote | ||
|---|---|---|---|
| Indefinite | Definite | Construct | |
| Informal | رُبَاعِي rubāʿī |
الرُّبَاعِي ar-rubāʿī |
رُبَاعِي rubāʿī |
| Nominative | رُبَاعِيٌّ rubāʿiyyun |
الرُّبَاعِيُّ ar-rubāʿiyyu |
رُبَاعِيُّ rubāʿiyyu |
| Accusative | رُبَاعِيًّا rubāʿiyyan |
الرُّبَاعِيَّ ar-rubāʿiyya |
رُبَاعِيَّ rubāʿiyya |
| Genitive | رُبَاعِيٍّ rubāʿiyyin |
الرُّبَاعِيِّ ar-rubāʿiyyi |
رُبَاعِيِّ rubāʿiyyi |
| Dual | Indefinite | Definite | Construct |
| Informal | رُبَاعِيَّيْن rubāʿiyyayn |
الرُّبَاعِيَّيْن ar-rubāʿiyyayn |
رُبَاعِيَّيْ rubāʿiyyay |
| Nominative | رُبَاعِيَّانِ rubāʿiyyāni |
الرُّبَاعِيَّانِ ar-rubāʿiyyāni |
رُبَاعِيَّا rubāʿiyyā |
| Accusative | رُبَاعِيَّيْنِ rubāʿiyyayni |
الرُّبَاعِيَّيْنِ ar-rubāʿiyyayni |
رُبَاعِيَّيْ rubāʿiyyay |
| Genitive | رُبَاعِيَّيْنِ rubāʿiyyayni |
الرُّبَاعِيَّيْنِ ar-rubāʿiyyayni |
رُبَاعِيَّيْ rubāʿiyyay |
| Plural | sound masculine plural | ||
| Indefinite | Definite | Construct | |
| Informal | رُبَاعِيِّين rubāʿiyyīn |
الرُّبَاعِيِّين ar-rubāʿiyyīn |
رُبَاعِيِّي rubāʿiyyī |
| Nominative | رُبَاعِيُّونَ rubāʿiyyūna |
الرُّبَاعِيُّونَ ar-rubāʿiyyūna |
رُبَاعِيُّو rubāʿiyyū |
| Accusative | رُبَاعِيِّينَ rubāʿiyyīna |
الرُّبَاعِيِّينَ ar-rubāʿiyyīna |
رُبَاعِيِّي rubāʿiyyī |
| Genitive | رُبَاعِيِّينَ rubāʿiyyīna |
الرُّبَاعِيِّينَ ar-rubāʿiyyīna |
رُبَاعِيِّي rubāʿiyyī |
References
- Wehr, Hans (1979), “ربع”, in J. Milton Cowan, editor, A Dictionary of Modern Written Arabic, 4th edition, Ithaca, NY: Spoken Language Services, →ISBN
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